diff --git a/README.md b/README.md
index 2ce3fec..e46f706 100644
--- a/README.md
+++ b/README.md
@@ -149,4 +149,6 @@ import Part
 s=Part.Shape()
 s.read("file.stp")
 s.exportIges("file.igs")
-```
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+```
+
+https://wiki.opensourceecology.org/wiki/FreeCAD_BOM_Generator
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