diff --git a/cmuratori/hero/code/code445.hmml b/cmuratori/hero/code/code445.hmml
index 4cb07cb..5a6c5bd 100644
--- a/cmuratori/hero/code/code445.hmml
+++ b/cmuratori/hero/code/code445.hmml
@@ -5,7 +5,7 @@
 [9:49][Toggle off the existing test world generation code in CreateWorld()][:"procedural generation"]
 [11:10][Begin to implement gen_connection][:"data structure" :"graph topology" :"procedural generation"]
 [13:16][The distinction between Database and Winged-Edge :"Data Structure", with a recommendation to read 'Transaction Processing' by Jim Gray[ref
-    author="Jim Gray"
+    author="Jim Gray and Andreas Reuter"
     title="Transaction Processing: Concepts and Techniques"
     isbn=9781558601901]][:"data structure" :speech]
 [17:44][Spec out gen_room_connection as a linked list of connections to a single room][:"data structure" :"graph topology" :"procedural generation"]