diff --git a/docs/guide/associations.rst b/docs/guide/associations.rst
index 270b8ce4c..e8031b24e 100644
--- a/docs/guide/associations.rst
+++ b/docs/guide/associations.rst
@@ -82,9 +82,9 @@ or any is-a :term:`Descendant`:
runoak -i sqlite:obo:hp -G hpoa -g phenotype.hpoa associations -p i HP:0011482
-
Further reading
---------------
+- `Ontogenesis article on associations `_
- `Gene Ontology: tool for the unification of biology `_
- `On beyond Gruber: "Ontologies" in today's biomedical information systems and the limits of OWL `_.