<!ENTITY intro                      SYSTEM "Introduction.docbook">

<!ENTITY intro-history              SYSTEM "Introduction/History.docbook">
<!ENTITY intro-history-2009         SYSTEM "Introduction/History/2009.docbook">
<!ENTITY intro-history-2010         SYSTEM "Introduction/History/2010.docbook">
<!ENTITY intro-history-2011         SYSTEM "Introduction/History/2011.docbook">

<!ENTITY intro-copying              SYSTEM "Introduction/Copying.docbook">
<!ENTITY intro-copying-preamble     SYSTEM "Introduction/Copying/preamble.docbook">

<!ENTITY intro-docconvs             SYSTEM "Introduction/Docconvs.docbook">
<!ENTITY intro-repoconvs            SYSTEM "Introduction/Repoconvs.docbook">
<!ENTITY intro-feedback             SYSTEM "Introduction/Feedback.docbook">