- added Knuth as useful reference.

diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi
index 13806b5798abfa89233ef892053c9db6bb645715..4794837657af188b83c7b9ce68097b2ee01bcb8d 100644 (file)
--- a/doc/tutorial/ginac.texi
+++ b/doc/tutorial/ginac.texi
@@ -5602,6 +5602,10 @@ and George Labahn, ISBN 0-7923-9259-0, 1992, Kluwer Academic Publishers, Norwell
 J.H. Davenport, Y. Siret, and E. Tournier, ISBN 0-12-204230-1, 1988, 
 Academic Press, London
 
 J.H. Davenport, Y. Siret, and E. Tournier, ISBN 0-12-204230-1, 1988, 
 Academic Press, London
 

+@item
+@cite{The Art of Computer Programming, Vol 2: Seminumerical Algorithms},
+D.E. Knuth, ISBN 0-201-89684-2, 1998, Addison Wesley
+

 @item
 @cite{The Role of gamma5 in Dimensional Regularization}, D. Kreimer, hep-ph/9401354
 
 @item
 @cite{The Role of gamma5 in Dimensional Regularization}, D. Kreimer, hep-ph/9401354