diff --git a/examples/various/roessler-attractor.cir b/examples/various/roessler-attractor.cir
index 46c58d6a9..7fc4b0ee7 100644
--- a/examples/various/roessler-attractor.cir
+++ b/examples/various/roessler-attractor.cir
@@ -1,5 +1,6 @@
 Model the rossler attractor
 *https://www.glensstuff.com/rosslerattractor/rossler.htm
+* provided by Giles Atkinson
 
 .param a=0.2 b=0.2 c=5.7