--- a/doc-src/Ref/ref.bbl Tue Nov 22 23:32:16 1994 +0100
+++ b/doc-src/Ref/ref.bbl Wed Nov 23 11:45:56 1994 +0100
@@ -1,4 +1,4 @@
-\begin{thebibliography}{1}
+\begin{thebibliography}{10}
\bibitem{bm88book}
Robert~S. Boyer and J~Strother Moore.
@@ -28,6 +28,12 @@
Automated Deduction}, pages 366--380. Springer, 1990.
\newblock LNCS 449.
+\bibitem{Nipkow-LICS-93}
+Tobias Nipkow.
+\newblock Functional unification of higher-order patterns.
+\newblock In M.~Vardi, editor, {\em Eighth Annual Symposium on Logic in
+ Computer Science}, pages 64--74. {\sc ieee} Computer Society Press, 1993.
+
\bibitem{nipkow-prehofer}
Tobias Nipkow and Christian Prehofer.
\newblock Type checking type classes.