diff --git a/R/enron.R b/R/enron.R
index 8018d45..b3728de 100644
--- a/R/enron.R
+++ b/R/enron.R
@@ -51,7 +51,7 @@
 #'   C.E. Priebe, J.M. Conroy, D.J. Marchette, and Y. Park,
 #'   Scan Statistics on Enron Graphs Computational and Mathematical
 #'   Organization Theory, Volume 11, Number 3, p229 - 247, October 2005,
-#'   Springer Science+Business Media B.V.
+#'   Springer Science+Business Media B.V. \doi{10.1007/s10588-005-5378-z}
 #'
 #'   C.E. Priebe, J.M. Conroy, D.J. Marchette, and Y. Park,
 #'   Scan Statistics on Enron Graphs, SIAM International Conference on
@@ -83,7 +83,7 @@
 #'
 #'   Y. Park, C.E. Priebe, A. Youssef, Anomaly Detection in Time Series of
 #'   Graphs using Fusion of Invariants, Computational and Mathematical
-#'   Organization Theory, submitted, 2010.
+#'   Organization Theory, submitted, 2010. \doi{10.1109/JSTSP.2012.2233712}
 #' @source
 #'   <http://www.cis.jhu.edu/~parky/Enron/>
 NULL
diff --git a/man/enron.Rd b/man/enron.Rd
index bc6d8b8..747bd01 100644
--- a/man/enron.Rd
+++ b/man/enron.Rd
@@ -55,7 +55,7 @@ An Enron email dataset has been made public by the U.S. Department of Justice.
 C.E. Priebe, J.M. Conroy, D.J. Marchette, and Y. Park,
 Scan Statistics on Enron Graphs Computational and Mathematical
 Organization Theory, Volume 11, Number 3, p229 - 247, October 2005,
-Springer Science+Business Media B.V.
+Springer Science+Business Media B.V. \doi{10.1007/s10588-005-5378-z}
 
 C.E. Priebe, J.M. Conroy, D.J. Marchette, and Y. Park,
 Scan Statistics on Enron Graphs, SIAM International Conference on
@@ -87,5 +87,5 @@ Conference on Data Mining, Sparks, Nevada, May 1-3, 2009,
 
 Y. Park, C.E. Priebe, A. Youssef, Anomaly Detection in Time Series of
 Graphs using Fusion of Invariants, Computational and Mathematical
-Organization Theory, submitted, 2010.
+Organization Theory, submitted, 2010. \doi{10.1109/JSTSP.2012.2233712}
 }