diff -r 9cf1760bff49 -r 574b4c2478d1 data/dictionary.xml
--- a/data/dictionary.xml	Wed Aug 14 00:37:34 2013 +0200
+++ b/data/dictionary.xml	Thu Aug 15 21:44:26 2013 +0200
@@ -456,10 +456,12 @@
 	<concept>
 		<term abbreviation="MCC" completeForm="mobile country code" language="en"/>
 		<explanation language="en"><text></text></explanation>
+		<!-- http://wammu.eu/tools/countries/ -->
 	</concept>
 	<concept>
 		<term abbreviation="MNC" completeForm="mobile network code" language="en"/>
 		<explanation language="en"><text></text></explanation>
+		<!-- http://wammu.eu/tools/networks/ -->
 	</concept>
 	<concept>
 		<term abbreviation="MSIN" completeForm="mobile subscription identification number" language="en"/>