<!– ============================================================= –> <!– MODULE: BITS Book Component Elements –> <!– VERSION: BITS 2.0 –> <!– DATE: June 2015 –> <!– –> <!– ============================================================= –>

<!– ============================================================= –> <!– PUBLIC DOCUMENT TYPE DEFINITION –> <!– TYPICAL INVOCATION –> <!– “-//NLM//DTD BITS Book Component Elements v2.0 20151225//EN” Delivered as file “BITS-book-part2.ent” –> <!– ============================================================= –>

<!– ============================================================= –> <!– SYSTEM: Book Interchange Tag Suite –> <!– –> <!– PURPOSE: Declare book-component-level elements such as –> <!– chapter-specific or part-specific elements. –> <!– –> <!– TAG SET SPONSOR –> <!– National Center for Biotechnology –> <!– Information (NCBI) –> <!– National Library of Medicine (NLM) –> <!– –> <!– CREATED FOR: –> <!– This DTD was created as a superset customization –> <!– of the ANSI/NISO JATS Z39.96-2012 Version 1.0 –> <!– Journal Article Tag Set. –> <!– –> <!– Digital archives and publishers may use the –> <!– DTD as is for markup of books or book-like –> <!– material for archiving and transferring –> <!– such material between archives or they may create –> <!– a custom XML DTD from the BITS Suite for –> <!– these purposes. –> <!– –> <!– This DTD is in the public domain. An organization –> <!– that wishes to create its own DTD from the suite –> <!– may do so without permission from NLM. –> <!– –> <!– The suite has been set up to be extended using a –> <!– new DTD file and new DTD-specific customization –> <!– modules to redefine the many Parameter Entities. –> <!– Do not modify the suite directly or redistribute –> <!– modified versions of the suite. –> <!– –> <!– In the interest of maintaining consistency and –> <!– clarity for potential users, NLM requests: –> <!– –> <!– 1. If you create a DTD from the BITS DTD Suite –> <!– and intend to stay compatible with the suite, –> <!– then please include the following statement –> <!– as a comment in all of your DTD modules: –> <!– “Created from, and fully compatible with, –> <!– the Book Interchange Tag Suite (BITS). –> <!– –> <!– 2. If you alter one or more modules of the suite, –> <!– then please rename your version and all its –> <!– modules to avoid any confusion with the –> <!– original suite. Also, please include the –> <!– following statement as a comment in all your –> <!– DTD modules: –> <!– ”Based in part on, but not fully compatible –> <!– with, the Book Interchange Tag Suite –> <!– (BITS).“ –> <!– –> <!– ORIGINAL CREATION DATE: –> <!– April 2012 –> <!– –> <!– CREATED BY: Mulberry Technologies, Inc. for the National –> <!– National Center for Biotechnology Information –> <!– (NCBI), a center of the US National Library of –> <!– Medicine (NLM). –> <!– –> <!– The BITS Book Interchange DTD is built from the –> <!– Journal Archiving and Interchange DTD of the –> <!– ANSI/NISO Journal Article Tag Suite (JATS) –> <!– Version 1.1d1 (Z39.96-2015). –> <!– –> <!– Suggestions for refinements and enhancements to –> <!– this DTD should be sent in email to: –> <!– bits@ncbi.nlm.nih.gov –> <!– ============================================================= –>

<!– ============================================================= –> <!– DTD VERSIONCHANGE HISTORY –> <!– ============================================================= –> <!– Version Reason/Occasion (who) vx.x (yyyy-mm-dd)

  =============================================================
   BITS Version 2.0                (DAL/BTU) v2.0  (2015-12-25)
   JATS Version 1.1                (DAL/BTU) v1.1  (2015-12-15)

   JATS is a continuing maintenance NISO Standard, which
   requires voting by the ANSI and NISO memberships to be changed. 
   JATS 1.1 was approved in late 2015, and BITS modified to use
   the most recent version. No other changes to BITS were made.

5. BITS remained version "2.0" but became "v2.0 20151225"
   JATS became version "1.1" and "v1.1 20151215"

  =============================================================
   BITS Version 2.0                (DAL/BTU) v2.0  (2015-03-15)
   JATS Version 1.1                (DAL/BTU) v1.1  (2015-03-01)

   BITS was modified, based on user feedback collected in 2014 
   and January/February 2015, according to the decisions
   made by the BITS Working Group. This DTD represents current 
   BITS and an interim version of the non-normative JATS DTD 
   Suite (version 1.1), as an indication to JATS users of 
   the decisions that have been made by the JATS Standing
   Committee. 

   NISO JATS is a continuing maintenance NISO Standard, which
   requires voting by the NISO membership to be changed. This
   Committee Draft 1.1 will be sent to the NISO voting
   membership, to become (if approved) NISO JATS 1.1.

4. ALI NAMESPACE - Added the ali: namespace to the attributes 
   for <book-app>, <book-app-group>, and <book-part>.

3. BOOK APPENDIX AND BOOK APPENDIX GROUP
    - New element Book Appendix (<book-app>), a 
      book-part-level appendix structure.

    - New element Book Appendix Group (<book-app-group>), a 
      book-part-level appendix grouping structure.

    These new components are only used in tthe back matter
    for a whole book (<book-back>).

2. BITS became version "2.0" and   "v2.0 20150630"
   JATS became version "1.1" and "v1.1 20150301"

   =============================================================
   BITS Version 1.1                (DAL/BTU) v1.1    (2014-09-30)
   JATS Version 1.1d2              (DAL/BTU) v1.1d2  (2014-09-30)

   NISO JATS is a continuing maintenance NISO Standard, which
   requires voting by the NISO membership to be changed. This
   Committee Draft 1.1d2 will be sent to the NISO voting
   membership, to become (if approved) NISO JATS 1.1.

   This catalog represents an interim version of the
   non-normative JATS DTD Suite, as an indication to JATS users
   the decisions that have been made by the JATS Standing
   Committee.

2. BOOK APPENDIX - Added a new named book-part <book-app>,
   that can be used in the back matter of books. It takes the
   full book-part model and attributes.

1. BITS became version "1.1" and   "v1.1 20140930//EN"
   JATS became version "1.1d2" and "v1.1d2 20140930//EN"

   =============================================================
                                                                 -->

<!– ============================================================= –> <!– PARAMETER ENTITIES FOR ATTRIBUTE VALUES –> <!– ============================================================= –>

<!– BOOK PART LOCATIONS –> <!– When a <book-part> is exchanged, the

@from-where attribute cam be used to record
the origin of the <book-part>, inside the
narrative <front-matter>, the <body>, the
rear matter (<back>,) or in  supplementary
material.                                  -->

<!ENTITY % book-part-locations

"front-matter | body | back | supplemental"  >

<!– ============================================================= –> <!– BOOK PART ATTRIBUTE LISTS –> <!– ============================================================= –>

<!– BACK ATTRIBUTES –> <!– Attributes for the <back> element –> <!ENTITY % back-atts

"%jats-common-atts;
  specific-use
             CDATA                             #IMPLIED"  >

<!– BODY ATTRIBUTES –> <!– Attributes for the <body> element –> <!ENTITY % body-atts

"%jats-common-atts;
  specific-use
             CDATA                             #IMPLIED"  >

<!– BOOK APPENDIX ATTRIBUTES –> <!– Attributes used with the <book-app> element

-->

<!ENTITY % book-app-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %ali.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %xinclude.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– BOOK APPENDIX GROUP ATTRIBUTES –> <!– Attributes used with the <book-app-group>

element                                    -->

<!ENTITY % book-app-group-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %ali.xmlns.attrib;
  %xinclude.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– BOOK PART ATTRIBUTES –> <!– Attributes used with the <book-part> element

-->

<!ENTITY % book-part-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %ali.xmlns.attrib;
  %xinclude.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– BODY PART METADATA ATTRIBUTES –> <!– Attributes for the <book-part-meta> element–> <!ENTITY % book-part-meta-atts

"%jats-common-atts;"                                      >

<!– FRONT MATTER PART ATTRIBUTES –> <!– Attributes used with the

<front-matter-part> element                -->

<!ENTITY % front-matter-part-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– DEDICATION ATTRIBUTES –> <!– Attributes used with the

<dedication> element                       -->

<!ENTITY % dedication-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– FOREWORD PART ATTRIBUTES –> <!– Attributes used with the

<foreword> element                         -->

<!ENTITY % foreword-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– NAMED BOOK PART ATTRIBUTES –> <!– Attributes for the <named-book-part-body>

element                                    -->

<!ENTITY % named-book-part-body-atts

"%jats-common-atts;"                                      >

<!– PREFACE ATTRIBUTES –> <!– Attributes used with the

<preface> element                          -->

<!ENTITY % preface-atts

"%jats-common-atts;
  book-part-type
             CDATA                             #IMPLIED
  seq        CDATA                             #IMPLIED
  indexed    (yes | no)                        #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED
  %XLINK.xmlns.attrib;
  %MATHML.xmlns.attrib;
  %Schema.xmlns.attrib;"                                  >

<!– ============================================================= –> <!– PARAMETER ENTITIES FOR ATTRIBUTE LISTS –> <!– ============================================================= –>

<!– BOOK PART IDENTIFIER ATTRIBUTES –> <!– Attributes for the <book-part-id> element –> <!ENTITY % book-part-id-atts

"%jats-common-atts;
  book-part-id-type
             CDATA                             #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED"  >

<!– COLLECTION METADATA ATTRIBUTES –> <!– Attributes used with the book set or book

series element <collection-meta>           -->

<!ENTITY % collection-meta-atts

"%jats-common-atts;
  seq        CDATA                             #IMPLIED
  collection-type
             CDATA                             #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED"  >

<!– COLLECTION IDENTIFIER ATTRIBUTES –> <!– Attributes used with the book set or book

series element <collection-id>             -->

<!ENTITY % collection-id-atts

"%jats-common-atts;
  collection-id-type
             CDATA                             #IMPLIED
  specific-use
             CDATA                             #IMPLIED
  xml:lang   NMTOKEN                           #IMPLIED"  >

<!– ============================================================= –> <!– BOOK PARTS (COMPONENTS SUCH AS CHAPTERS) –> <!– ============================================================= –>

<!– BOOK PART MODEL –> <!– Content model for the <book-part> element –> <!ENTITY % book-part-model

"(book-part-meta?, front-matter?, body?,
  back?)"                                    >

<!–ELEM front-matter Defined in book.dtd –> <!–ELEM back Defined in book.dtd –>

<!– BOOK PART –> <!– A major organizational unit of a book,

typically called a "chapter", but given
many names in common language, for example,
chapter, part, unit, module, section, topic,
lesson, canto, volume, or even "book".
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=book-part
                                           -->

<!ELEMENT book-part %book-part-model; > <!ATTLIST book-part

%book-part-atts;                                        >

<!– ============================================================= –> <!– BOOK PART METADATA ELEMENTS –> <!– ============================================================= –>

<!– BOOK PART METADATA MODEL –> <!– Full content model for the metadata that is

specific to a book component, such as a
chapter or unit.                           -->

<!ENTITY % book-part-meta-model

"(book-part-id*, subj-group*, title-group?,
  (%contrib-group.class; |
   %aff-alternatives.class; | %x.class;)*,
  author-notes?, pub-date*, edition*,
  issn*, issn-l?, isbn*,
  publisher*,
  ((fpage, lpage?) | elocation-id)?,
  supplementary-material*, pub-history*,
  permissions?, self-uri*,
  (%related-article.class;)*,
  (%abstract.class;)*, trans-abstract*,
  (%kwd-group.class;)*,
  funding-group*, conference*, counts?,
  custom-meta-group*,
  (%front-back.class;)* )"                   >

<!– BOOK PART METADATA –> <!– Container element for the metadata that is

specific to the large-scale components that
comprise the body of a book, such as a
chapter, unit, part, or module (all tagged
as the element <book-part>).
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=book-part-meta
                                           -->

<!ELEMENT book-part-meta

%book-part-meta-model;                       >

<!ATTLIST book-part-meta

%book-part-meta-atts;                                   >

<!– BOOK PART IDENTIFIER –> <!– An identifier, such as a DOI or archive

control number, for a <book-part>.
Remarks: The @book-part-id-type attribute
should be used to name the type of
identifier, such as "doi".
   There is a separate element for the
ISBNs <isbn> related to a <book-part>.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=book-part-id
                                           -->

<!ELEMENT book-part-id (#PCDATA) > <!ATTLIST book-part-id

%book-part-id-atts;                                     >

<!– ============================================================= –> <!– ELEMENTS WITHIN BOOK PARTS –> <!– ============================================================= –>

<!– BOOK PART BODY MODEL –> <!– Content model for the <book-part-body>

element                                    -->

<!ENTITY % body-model “((%para-level;)*, (%sec-level;)*,

(%book-part.class;)* )"                    >

<!– BOOK PART BODY –> <!– The narrative and graphical portion of a

major component of a book, such as a
chapter. This is the text of the chapter as
distinguished from the metadata such as the
chapter number or editors.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=body
                                           -->

<!ELEMENT body %body-model; > <!ATTLIST body

%body-atts;                                             >

<!– ============================================================= –> <!– BOOK PART BACK MATTER ELEMENTS –> <!– ============================================================= –>

<!– BACK MATTER MODEL –> <!– Content model for the Back Matter element

which contains ancillary material such as
reference lists and appendices for a book
part such as a chapter.                    -->

<!ENTITY % back-model “(label?, title*,

(%back-only.class; |
 %both-front-back.class; |
 %front-back.class; | %sec.class; |
 %sig-block.class;)+  )"                   >

<!– BACK MATTER –> <!– Ancillary or supporting material not included

as part of the main textual content of a
book, for example appendices and lists of
references.
At first inception, this element differed from
the <book-back> element in NOT containing
book parts (<book-part>).
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=back
                                           -->

<!ELEMENT back %back-model; > <!ATTLIST back

%back-atts;                                             >

<!– ============================================================= –> <!– COLLECTION METADATA –> <!– ============================================================= –>

<!– COLLECTION METADATA –> <!– Content model for the collection metadata

element <collection-meta>.                 -->

<!ENTITY % collection-meta-model

"(collection-id*, subj-group*, title-group?,
  (%contrib-group.class; |
  %aff-alternatives.class; | %x.class;)*,
  author-notes?, pub-history*,
  volume-in-collection*,
  issn*, issn-l?, isbn*,
  publisher*, edition*,
  permissions?, self-uri*,
  (%related-article.class;)*,
  (%abstract.class;)*, trans-abstract*,
  (%kwd-group.class;)*,
  funding-group*, conference*, counts?,
  custom-meta-group*,
  (%front-back.class;)* )"                   >

<!– COLLECTION METADATA –> <!– Bibliographic metadata describing a book set

or series to which this book or book part
belongs. Note: This series metadata is not
complete en ought to pro dice a publishers'
catalog; this is just the series metadata that
travels with a book. By design, this will
NOT include metadata concerning other books
in the series.
Remarks: BITS is deliberately agnostic
concerning the definition of a book series
or a book set, leaving the question of
definition to the publisher.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=collection-meta
                                           -->

<!ELEMENT collection-meta

%collection-meta-model;                      >

<!ATTLIST collection-meta

%collection-meta-atts;                                  >

<!– COLLECTION IDENTIFIER –> <!– An identifier, such as a DOI or archive

control number, or LCCN for a series or set
of books.
Remarks: The @collection-id-type attribute
should be used to name the type of
identifier, such as "lccn".
   There is a separate element for the
ISBNs <isbn> related to a book.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=collection-id
                                           -->

<!ELEMENT collection-id

(#PCDATA)                                    >

<!ATTLIST collection-id

%collection-id-atts;                                    >

<!– ============================================================= –> <!– NAMED BOOK PART MODELS –> <!– ============================================================= –>

<!– NAMED BOOK PART MODEL –> <!– Content model for the named book part

elements such as <foreword> and
<dedication>.                              -->

<!ENTITY % named-book-part-model

"(book-part-meta?, named-book-part-body?,
  back?)"                                    >

<!– NAMED BOOK PART BODY MODEL –> <!– Content model for the body of any of the named

book parts such as the <dedication>.       -->

<!ENTITY % named-book-part-body-model

"( ((%para-level;)+, (%sec-level;)* ) |
    (%sec-level;)+ )"                        >

<!– NAMED BOOK PART BODY –> <!– Content model for the non-recursive body of

a named book parts such as a <dedication> or
<foreword>.                                -->

<!ELEMENT named-book-part-body

(%named-book-part-body-model;)               >

<!ATTLIST named-book-part-body

%named-book-part-body-atts;                             >

<!– ============================================================= –> <!– BOOK-BACK MATTER ELEMENTS –> <!– ============================================================= –>

<!– BOOK APPENDIX MODEL –> <!– Content model for the named book part

<book-app>.                                -->

<!ENTITY % book-app-model

"(book-part-meta?, front-matter?, body?,
  back?)"                                    >

<!– BOOK APPENDIX –> <!– An appendix to an entire book (a named book

part).
Remarks: A Book Appendix contains ancillary 
or supporting material for an entire
book, which is not included as part of the 
main textual content of the book, for example 
reference tables, special glossaries, or an
explanation of applications and software in
a book on theory.
  A <book-app> may be a very large book
part with its own contributors, Table of 
Contents, indexing, etc. The <body> of
a <book-app> may contain other <book-part>s.
Related Elements: This element is similar to 
(but not the same as) the JATS appendix
element (<app>). An appendix (<app>) is part
of a book part such as a chapter or a JATS 
article and is placed into the back matter
(<back>) of that chapter. A Book Appendix 
(<book-app>) is an appendix that is a
book-part-level component of a book, and 
is found in the back matter of the whole 
book (<book-back>) rather than within the
back matter of a single book-part (<back>).
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=book-app
                                           -->

<!ELEMENT book-app %book-app-model; > <!ATTLIST book-app

%book-app-atts;                                         >

<!– BOOK APPENDIX GROUP MODEL –> <!– Content model for the <book-app-group>

model.                                     -->

<!ENTITY % book-app-group-model

"(book-part-meta?,
  (%para-level;)*, (%sec-level;)*,
  (book-app)+ )"                             >

<!– BOOK APPENDIX GROUP MODEL –> <!– Container element for a collection of

book-level appendices.
Remarks: This element was created to hold a
book part that contains all the appendices
of a book, perhaps with a title (such as
"Appendices" and a few paragraphs of 
introduction.
  Many books do not have this grouping, they 
place each appendix in the <book-back> matter
directly.                         
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=book-app-group
                                           -->

<!ELEMENT book-app-group

%book-app-group-model;                       >

<!ATTLIST book-app-group

%book-app-group-atts;                                   >

<!– ============================================================= –> <!– FRONT MATTER BOOK PART MODELS –> <!– ============================================================= –>

<!– FRONT MATTER PART MODEL –> <!– Content model for the named book part

<front-matter-part>.                       -->

<!ENTITY % front-matter-part-model

"%named-book-part-model;"                    >

<!– FRONT MATTER PART –> <!– Narrative introductory material such as

Preface, Foreword, Dedication,
Introduction to the Fifth Edition, etc.
This is a more simplified version of a book
part, being non-recursive.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=front-matter-part
                                           -->

<!ELEMENT front-matter-part

(%front-matter-part-model;)                  >

<!ATTLIST front-matter-part

%front-matter-part-atts;                                >

<!– ============================================================= –> <!– EXPLICITLY NAMED BOOK PART MODELS –> <!– A BITS user is free to ignore all of the –> <!– elements below and use the element –> <!– <named-book-part> for all book-parts. –> <!– ============================================================= –>

<!– DEDICATION MODEL –> <!– Content model for the named book part

<dedication>.                              -->

<!ENTITY % dedication-model

"%named-book-part-model;"                    >

<!– DEDICATION –> <!– A named book component that contains text

dedicating the book in some fashion.
Note: A publisher could choose to call this
component just another <book-part>, but many
publishers specifically identify dedications,
so this element was included in BITS.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=dedication
                                           -->

<!ELEMENT dedication %dedication-model; > <!ATTLIST dedication

%dedication-atts;                                       >

<!– FOREWORD MODEL –> <!– Content model for the named book part

<foreword>.                                -->

<!ENTITY % foreword-model

"%named-book-part-model;"                    >

<!– FOREWORD –> <!– A named book component that contains text

which is called a "Foreword"; each publisher
is free to define that term.
Note: A publisher could choose to call this
component just another <book-part>, but many
publishers specifically identify dedications,
so this element was included in BITS.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=foreword
                                           -->

<!ELEMENT foreword %foreword-model; > <!ATTLIST foreword

%foreword-atts;                                         >

<!– PREFACE MODEL –> <!– Content model for the named book part

<preface>.                                 -->

<!ENTITY % preface-model

"%named-book-part-model;"                    >

<!– PREFACE –> <!– A named book component that contains text

which is called a "Preface"; each publisher
is free to define that term.
Note: A publisher could choose to call this
component just another <book-part>, but many
publishers specifically identify dedications,
so this element was included in BITS.
Details at:
http://jats.nlm.nih.gov/extensions/bits/2.0/index.html?elem=preface
                                           -->

<!ELEMENT preface %preface-model; > <!ATTLIST preface

%preface-atts;                                          >

<!– ================== End Book Part Elements =================== –>