Ontology-Based Image Retrieval. - Eero Hyvönen; Samppa Saarela; Avril Styrman; Kim Viljanen (WWW (Posters), 2003)

Finitist set theory in ontological modeling. - Avril Styrman; Aapo Halko (Appl. Ontology, 2018)

Tense Logic and Ontology of Time. - Avril Styrman (JOWO, 2021)