diff -r 13f3aaf12be2 -r ec7d7f877712 doc-src/IsarRef/isar-ref.tex
--- a/doc-src/IsarRef/isar-ref.tex	Mon Aug 28 13:50:24 2000 +0200
+++ b/doc-src/IsarRef/isar-ref.tex	Mon Aug 28 13:52:38 2000 +0200
@@ -9,7 +9,7 @@
 
 
 \documentclass[12pt,a4paper,fleqn]{report}
-\usepackage{latexsym,graphicx,../iman,../extra,../proof,../rail,../railsetup,../isar,../pdfsetup}
+\usepackage{latexsym,graphicx,../iman,../extra,../ttbox,../proof,../rail,../railsetup,../isar,../pdfsetup}
 
 \title{\includegraphics[scale=0.5]{isabelle_isar} \\[4ex] The Isabelle/Isar Reference Manual}
 \author{\emph{Markus Wenzel} \\ TU M\"unchen}