--- a/bibliography.xmlf
+++ b/bibliography.xmlf
@@ -1,13 +1,9 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE book [
-<!ENTITY % eclent SYSTEM "ecl.ent">
-%eclent;
-]>
-<book xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en">
- <bibliography xml:id="Bibliography">
+<?xml version="1.0"?><!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
+<book lang="en">
+ <bibliography id="Bibliography">
   <title>Bibliography</title>
 
-  <bibliomixed xml:id="bib.LISP1.5" xreflabel="LISP1.5">
+  <bibliomixed id="bib.LISP1.5" xreflabel="[LISP1.5]">
    <bibliomset>
     <firstname>John</firstname> <surname>McCarthy</surname> et
     al. <title>LISP 1.5 Programmer's
@@ -21,7 +17,7 @@
    </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.ANSI" xreflabel="ANSI">
+  <bibliomixed id="bib.ANSI" xreflabel="ANSI">
   <bibliomset>
    <title>ANSI Common Lisp Specification, ANSI/X3.226-1994</title>.
    <corpname>American National Standards Institute</corpname>,
@@ -29,7 +25,7 @@
   </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.HyperSpec" xreflabel="CLHS">
+  <bibliomixed id="bib.HyperSpec" xreflabel="CLHS">
   <bibliomset>
    <firstname>Kent M.</firstname> <surname>Pitman</surname>.
    <title>The Common Lisp Hyperspec</title>.
@@ -40,7 +36,7 @@
   </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.CLTL" xreflabel="CLTL">
+  <bibliomixed id="bib.CLTL" xreflabel="CLTL">
    <bibliomset>
     <firstname>Guy L.</firstname> <surname>Steele Jr</surname> et al.
     <title>Common Lisp The Language</title>.
@@ -48,7 +44,7 @@
    </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.CLTL2" xreflabel="CLTL2">
+  <bibliomixed id="bib.CLTL2" xreflabel="CLTL2">
    <bibliomset>
     <firstname>Guy L.</firstname> <surname>Steele Jr.</surname> et al.
     <title>Common Lisp The Language II</title>.
@@ -56,7 +52,7 @@
    </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.KCL" xreflabel="KCL">
+  <bibliomixed id="bib.KCL" xreflabel="KCL">
    <bibliomset>
     <firstname>Taichi</firstname> <surname>Yuasa</surname> and
     <firstname>Masami</firstname> <surname>Hagiya</surname>.  <title>Kyoto
@@ -65,7 +61,7 @@
    </bibliomset>
   </bibliomixed>
 
-  <bibliomixed xml:id="bib.ECL" xreflabel="ECL">
+  <bibliomixed id="bib.ECL" xreflabel="ECL">
    <bibliomset>
     <firstname>Giusseppe</firstname> <surname>Attardi</surname>.  <title>The
     Embeddable Common Lisp</title>.  <publishername>ACM Lisp
@@ -73,27 +69,6 @@
     <pagenums>30-41</pagenums>, <pubdate>1995</pubdate>.
    </bibliomset>
   </bibliomixed>
-
-  <bibliomixed xml:id="bib.mk-defsystem" xreflabel="mk-defsystem">
-   <bibliomset>
-    <firstname>Mark</firstname> <surname>Kantrowitz</surname>, <title>Portable
-    Utilities for Common Lisp. User Guide &amp; Implementation.</title>
-    <corpname>Cargnegie Mellon University</corpname>, <pubdate>1991</pubdate>.
-    <bibliomisc>Available in the <ulink
-    url="http://www-2.cs.cmu.edu/afs/cs.cmu.edu/project/ai-repository/ai/lang/lisp/code/tools/mkantdoc.tgz">CMU
-    repository</ulink></bibliomisc>
-   </bibliomset>
-  </bibliomixed>
-
-  <bibliomixed xml:id="bib.AMOP" xreflabel="AMOP">
-   <bibliomset>
-    <firstname>Gregor</firstname> <surname>Kickzales</surname> et al. <title>The
-    Art of the Metaobject Protocol</title> <publishername>The
-    M.I.T. Press</publishername>, <corpname>Massachussets Institute of
-    Technology</corpname>, <pubdate>1999</pubdate>.
-   </bibliomset>
-  </bibliomixed>
-
 
  </bibliography>
 <!-- Keep this comment at the end of the file