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               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
               <!ENTITY chap1 SYSTEM "1_requirements.xml">
               <!ENTITY chap2 SYSTEM "2_vision.xml">
               <!ENTITY chap3 SYSTEM "3_scope.xml">
               <!ENTITY chap4 SYSTEM "4_context.xml">
]>
<book>
    <bookinfo>
        <title>Project Horizon: Vision</title>
        <authorgroup>
            <author><firstname>A.</firstname><surname>Wilcox</surname><affiliation><orgname>Adélie Linux</orgname></affiliation></author>
            <author><firstname>Tambra</firstname><surname>Wilcox</surname><affiliation><orgname>Adélie Linux</orgname></affiliation></author>
            <author><firstname>Elizabeth</firstname><surname>Myers</surname><affiliation><orgname>The Interlinked Foundation</orgname></affiliation></author>
            <author><firstname>Lee</firstname><surname>Starnes</surname></author>
            <author><firstname>Max</firstname><surname>Rees</surname></author>
            <author><firstname>Samuel</firstname><surname>Holland</surname></author>
        </authorgroup>
        <edition>Vision for Horizon 1.0: Final</edition>
        <pubdate>2019-08-30</pubdate>
        <copyright>
            <year>2015</year>
            <year>2016</year>
            <year>2019</year>
            <holder>Adélie Linux</holder>
        </copyright>
        <legalnotice>
            <para>Development documentation for Project Horizon is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.</para>
            <para>You should have received a copy of the license along with this work. If not, see <ulink url="https://creativecommons.org/licenses/by-nc-sa/4.0/"><citetitle>the Creative Commons Web site</citetitle></ulink>.</para>
        </legalnotice>
        <abstract><para>This document describes the overall project vision for Project Horizon, the installation system for Adélie Linux.</para></abstract>
    </bookinfo>
    &chap1;
    &chap2;
    &chap3;
    &chap4;
</book>