--- a/tools/plotting/venn_list.xml	Thu May 16 12:46:18 2013 -0400
+++ b/tools/plotting/venn_list.xml	Wed Sep 11 06:46:31 2013 -0400
@@ -105,9 +105,16 @@
 
 The R library is called from Python via rpy, http://rpy.sourceforge.net/
 
-This tool uses Biopython to read SFF files. If you use this tool with
-SFF files in scientific work leading to a publication, please cite the
-Biopython application note:
+If you use this Galaxy tool in work leading to a scientific publication please
+cite:
+
+Peter Cock, Bjoern Gruening, Konrad Paszkiewicz and Leighton Pritchard (2013).
+Galaxy tools and workflows for sequence analysis with applications
+in molecular plant pathology. PeerJ 1:e167
+http://dx.doi.org/10.7717/peerj.167
+
+This tool uses Biopython to read and write SFF files, so you may also wish to
+cite the Biopython application note (and Galaxy too of course):
 
 Cock et al 2009. Biopython: freely available Python tools for computational
 molecular biology and bioinformatics. Bioinformatics 25(11) 1422-3.