diff --git a/Contrib/RxnRoleAssignment/README.txt b/Contrib/RxnRoleAssignment/README.txt
index ca27ffb2c..1541ddc0c 100644
--- a/Contrib/RxnRoleAssignment/README.txt
+++ b/Contrib/RxnRoleAssignment/README.txt
@@ -1,9 +1,11 @@
-This directory contains the scripts used to assign reaction roles to a given reaction. 
+This directory contains the scripts used to assign reaction roles (educt or reagent) 
+to a given reaction. 
 
 The algorithm used in the scripts is described in the following publication:
 
-Schneider, N.; Stiefl, N.; Landrum G.A. What's what: The (Nearly) Definitive Guide 
-to Reaction Role Assignment. Journal of Chemical Information and Modeling, 2016, submitted.
+Schneider, N.; Stiefl, N.; Landrum G.A. 
+What's what: The (Nearly) Definitive Guide to Reaction Role Assignment. 
+Journal of Chemical Information and Modeling, 2016, DOI: 10.1021/acs.jcim.6b00564.
 
 The approach requires RDKit (www.rdkit.org) to be installed and properly configured.