+Contributors of patches
+-----------------------
+
+Roberto Bagnara, Do Hoang Son, Markus Nullmeier, Pearu Peterson, Benedikt
+Pluemper, Ben Sapp, Stefan Weinzierl.
+(Please send email if you think you were forgotten.)
+
+
+Contacing the authors
+---------------------
+
+If you have found a bug, have a patch or a question or would like to
+make a suggestion please send email to one of our public mailing lists
+instead of to one or more of the authors. This avoids both potential
+duplication of work and delays caused by possible vacations. Mailing
+list subscription is explained at <http://www.ginac.de/Lists.html>.