diff --git a/README.md b/README.md
index 52ab922d023b6e7797cdd1ea767393352b44c8bd..c83ef39b3fd915df4be9938d19789d595593c9c1 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,19 @@ To use moondb module, simply do::
     >>> s_12023 = moondb.get_specimens(sc=['12023'])[0]
 
 
+# How to cite MoonDB and python-moondb
+
+
+__MoonDB__
 Lehnert, K. A., Markey, K., Ji, P., Cai, Y., Hodges, K., Mercer, C., Walker, J. D., Ash, J., Evans, C. and Zeigler, R.
 MoonDB: 50 Years of Lunar Sample Data Ready for the Data Revolution
 Lunar and Planetary Science Conference
 2019, pp. 2996
+
+__python-moondb__
+Frigeri, A., Lehnert, K. A., Ji, P.  The Python interface to the MoonDB geochemical and petrological database
+European Planetary Science Congress
+2019
+
+
+