<!-- ...................................................................... -->
<!-- DocBook DTD V2.4.1 ................................................... -->
<!-- File docbook.dtd ..................................................... -->

<!-- Copyright 1992, 1993, 1994, 1995 HaL Computer Systems, Inc., 
     O'Reilly & Associates, Inc., and ArborText, Inc.

     Permission to use, copy, modify and distribute the DocBook DTD and
     its accompanying documentation for any purpose and without fee is
     hereby granted in perpetuity, provided that the above copyright
     notice and this paragraph appear in all copies.  The copyright
     holders make no representation about the suitability of the DTD for
     any purpose.  It is provided "as is" without expressed or implied
     warranty.

     If you modify the DocBook DTD in any way, except for declaring and
     referencing additional sets of general entities and declaring
     additional notations, label your DTD as a variant of DocBook.  See
     the maintenance documentation for more information.

     Please direct all questions, bug reports, or suggestions for
     changes to the davenport@online.ora.com mailing list or to one of
     the maintainers:

     o Terry Allen, O'Reilly & Associates, Inc.
       101 Morris St., Sebastopol, CA 95472
       <terry@ora.com>

     o Eve Maler, ArborText, Inc.
       105 Lexington St., Burlington, MA 01803
       <elm@arbortext.com>
-->

<!-- ...................................................................... -->

<!-- This is the driver file for Version 2.4.1 of the DocBook DTD.
     Please use the following formal public identifier to identify it:

     "-//Davenport//DTD DocBook V2.4.1//EN"

     For example, if your document's top-level element is Book, and
     you are using DocBook directly, use the FPI in the DOCTYPE
     declaration:

     <!DOCTYPE Book PUBLIC "-//Davenport//DTD DocBook V2.4.1//EN" [...]>

     Or, if you have a higher-level driver file that customizes DocBook,
     use the FPI in the parameter entity declaration:

     <!ENTITY % DocBookDTD PUBLIC "-//Davenport//DTD DocBook V2.4.1//EN">
     %DocBookDTD;

     The DocBook DTD is accompanied by an SGML declaration.

     See the documentation for detailed information on the parameter
     entity and module scheme used in DocBook, customizing DocBook and
     planning for interchange, and changes made since the last release
     of DocBook.
-->

<!-- ...................................................................... -->
<!-- Notation declarations ................................................ -->

<!ENTITY % local.notation.class "">
<!ENTITY % notation.class
		"BMP| CGM-CHAR | CGM-BINARY | CGM-CLEAR | DITROFF | DVI 
		| EPS | EQN | FAX | GIF | IGES | PCX | PIC | PS | TBL | TEX 
		| TIFF | WMF | WPG | linespecific 
		%local.notation.class;">

<!NOTATION BMP		PUBLIC
"+//ISBN 0-7923-9432-1::Graphic Notation//NOTATION Microsoft Windows bitmap//EN">
<!NOTATION CGM-CHAR	PUBLIC "ISO 8632/2//NOTATION Character encoding//EN">
<!NOTATION CGM-BINARY	PUBLIC "ISO 8632/3//NOTATION Binary encoding//EN">
<!NOTATION CGM-CLEAR	PUBLIC "ISO 8632/4//NOTATION Clear text encoding//EN">
<!NOTATION DITROFF	SYSTEM "DITROFF">
<!NOTATION DVI		SYSTEM "DVI">
<!NOTATION EPS		PUBLIC 
"+//ISBN 0-201-18127-4::Adobe//NOTATION PostScript Language Ref. Manual//EN">
<!-- EQN was SYSTEM "-//AT&T//NOTATION EQN-1//EN" -->
<!NOTATION EQN		SYSTEM>
<!NOTATION FAX		PUBLIC 
"-//USA-DOD//NOTATION CCITT Group 4 Facsimile Type 1 Untiled Raster//EN">
<!NOTATION GIF		SYSTEM "GIF">
<!NOTATION IGES		PUBLIC 
"-//USA-DOD//NOTATION (ASME/ANSI Y14.26M-1987) Initial Graphics Exchange Specification//EN">
<!NOTATION PCX		PUBLIC 
"+//ISBN 0-7923-9432-1::Graphic Notation//NOTATION ZSoft PCX bitmap//EN">
<!-- PIC was SYSTEM "-//AT&T//NOTATION EQN-1//EN" -->
<!NOTATION PIC		SYSTEM>
<!NOTATION PS		SYSTEM "PS">
<!-- TBL was SYSTEM "-//AT&T//NOTATION EQN-1//EN" -->
<!NOTATION TBL		SYSTEM>
<!NOTATION TEX		PUBLIC 
"+//ISBN 0-201-13448-9::Knuth//NOTATION The TeXbook//EN">
<!NOTATION TIFF		SYSTEM "TIFF">
<!NOTATION WMF		PUBLIC 
"+//ISBN 0-7923-9432-1::Graphic Notation//NOTATION Microsoft Windows Metafile//EN">
<!NOTATION WPG		SYSTEM "WPG" --WordPerfect Graphic format-->
<!NOTATION linespecific	SYSTEM 
"line ends and leading white space must be preserved in output">

<!-- ...................................................................... -->
<!-- ISO character entity sets ............................................ -->

<!ENTITY % ISOamsa.module	"INCLUDE">
<!ENTITY % ISOamsb.module	"INCLUDE">
<!ENTITY % ISOamsc.module	"INCLUDE">
<!ENTITY % ISOamsn.module	"INCLUDE">
<!ENTITY % ISOamso.module	"INCLUDE">
<!ENTITY % ISOamsr.module	"INCLUDE">
<!ENTITY % ISObox.module	"INCLUDE">
<!ENTITY % ISOcyr1.module	"INCLUDE">
<!ENTITY % ISOcyr2.module	"INCLUDE">
<!ENTITY % ISOdia.module	"INCLUDE">
<!ENTITY % ISOgrk1.module	"INCLUDE">
<!ENTITY % ISOgrk2.module	"INCLUDE">
<!ENTITY % ISOgrk3.module	"INCLUDE">
<!ENTITY % ISOgrk4.module	"INCLUDE">
<!ENTITY % ISOlat1.module	"INCLUDE">
<!ENTITY % ISOlat2.module	"INCLUDE">
<!ENTITY % ISOnum.module	"INCLUDE">
<!ENTITY % ISOpub.module	"INCLUDE">
<!ENTITY % ISOtech.module	"INCLUDE">

<![ %ISOamsa.module; [
<!ENTITY % ISOamsa PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Arrow Relations//EN">
%ISOamsa;
<!--end of ISOamsa.module-->]]>

<![ %ISOamsb.module; [
<!ENTITY % ISOamsb PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Binary Operators//EN">
%ISOamsb;
<!--end of ISOamsb.module-->]]>

<![ %ISOamsc.module; [
<!ENTITY % ISOamsc PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Delimiters//EN">
%ISOamsc;
<!--end of ISOamsc.module-->]]>

<![ %ISOamsn.module; [
<!ENTITY % ISOamsn PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Negated Relations//EN">
%ISOamsn;
<!--end of ISOamsn.module-->]]>

<![ %ISOamso.module; [
<!ENTITY % ISOamso PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Ordinary//EN">
%ISOamso;
<!--end of ISOamso.module-->]]>

<![ %ISOamsr.module; [
<!ENTITY % ISOamsr PUBLIC
"ISO 8879:1986//ENTITIES Added Math Symbols: Relations//EN">
%ISOamsr;
<!--end of ISOamsr.module-->]]>

<![ %ISObox.module; [
<!ENTITY % ISObox PUBLIC
"ISO 8879:1986//ENTITIES Box and Line Drawing//EN">
%ISObox;
<!--end of ISObox.module-->]]>

<![ %ISOcyr1.module; [
<!ENTITY % ISOcyr1 PUBLIC
"ISO 8879:1986//ENTITIES Russian Cyrillic//EN">
%ISOcyr1;
<!--end of ISOcyr1.module-->]]>

<![ %ISOcyr2.module; [
<!ENTITY % ISOcyr2 PUBLIC
"ISO 8879:1986//ENTITIES Non-Russian Cyrillic//EN">
%ISOcyr2;
<!--end of ISOcyr2.module-->]]>

<![ %ISOdia.module; [
<!ENTITY % ISOdia PUBLIC
"ISO 8879:1986//ENTITIES Diacritical Marks//EN">
%ISOdia;
<!--end of ISOdia.module-->]]>

<![ %ISOgrk1.module; [
<!ENTITY % ISOgrk1 PUBLIC
"ISO 8879:1986//ENTITIES Greek Letters//EN">
%ISOgrk1;
<!--end of ISOgrk1.module-->]]>

<![ %ISOgrk2.module; [
<!ENTITY % ISOgrk2 PUBLIC
"ISO 8879:1986//ENTITIES Monotoniko Greek//EN">
%ISOgrk2;
<!--end of ISOgrk2.module-->]]>

<![ %ISOgrk3.module; [
<!ENTITY % ISOgrk3 PUBLIC
"ISO 8879:1986//ENTITIES Greek Symbols//EN">
%ISOgrk3;
<!--end of ISOgrk3.module-->]]>

<![ %ISOgrk4.module; [
<!ENTITY % ISOgrk4 PUBLIC
"ISO 8879:1986//ENTITIES Alternative Greek Symbols//EN">
%ISOgrk4;
<!--end of ISOgrk4.module-->]]>

<![ %ISOlat1.module; [
<!ENTITY % ISOlat1 PUBLIC
"ISO 8879:1986//ENTITIES Added Latin 1//EN">
%ISOlat1;
<!--end of ISOlat1.module-->]]>

<![ %ISOlat2.module; [
<!ENTITY % ISOlat2 PUBLIC
"ISO 8879:1986//ENTITIES Added Latin 2//EN">
%ISOlat2;
<!--end of ISOlat2.module-->]]>

<![ %ISOnum.module; [
<!ENTITY % ISOnum PUBLIC
"ISO 8879:1986//ENTITIES Numeric and Special Graphic//EN">
%ISOnum;
<!--end of ISOnum.module-->]]>

<![ %ISOpub.module; [
<!ENTITY % ISOpub PUBLIC
"ISO 8879:1986//ENTITIES Publishing//EN">
%ISOpub;
<!--end of ISOpub.module-->]]>

<![ %ISOtech.module; [
<!ENTITY % ISOtech PUBLIC
"ISO 8879:1986//ENTITIES General Technical//EN">
%ISOtech;
<!--end of ISOtech.module-->]]>

<!-- ...................................................................... -->
<!-- DTD modules .......................................................... -->

<!-- Information pool .............. -->

<!ENTITY % dbpool PUBLIC 
"-//Davenport//ELEMENTS DocBook Information Pool V2.4.1//EN">
%dbpool;

<!-- Redeclaration placeholder ..... -->

<!ENTITY % intermod.redecl.module "IGNORE">
<![ %intermod.redecl.module; [
%rdbmods;
<!--end of intermod.redecl.module-->]]>

<!-- Document hierarchy ............ -->

<!ENTITY % dbhier PUBLIC 
"-//Davenport//ELEMENTS DocBook Document Hierarchy V2.4.1//EN">
%dbhier;

<!-- ...................................................................... -->
<!-- Other general entities ............................................... -->

<!ENTITY % dbgenent PUBLIC
"-//Davenport//ELEMENTS DocBook Additional General Entities//EN">
%dbgenent;

<!-- End of DocBook DTD V2.4.1 ............................................ -->
<!-- ...................................................................... -->
