diff --git a/examples/lomb.m b/examples/lomb.m
index 65b2a15..d5dabbd 100644
--- a/examples/lomb.m
+++ b/examples/lomb.m
@@ -1,3 +1,9 @@
+/*
+This Magma code example is from Davide Lombardo's page:
+
+https://people.dm.unipi.it/lombardo/files/Lab.m
+*/ 
+
 /******
 Elementary approach to enumerating groups of order 2^n, n \leq 6
 *******/