The Agricultural Ontology Server (AOS) - A Tool for Facilitating Access to Knowledge. - Frehiwot Fisseha (Semannot@K-CAP 2001, 2001)

A Comprehensive Framework for Building Multilingual Domain Ontologies: Creating a Prototype Biosecurity Ontology. - Boris Lauser; Tanja Wildemann; Allison Poulos; Frehiwot Fisseha; Johannes Keizer; Stephen Katz (Dublin Core Conference, 2002)

Reengineering Thesauri for New Applications: The AGROVOC Example. - Dagobert Soergel; Boris Lauser; Anita C. Liang; Frehiwot Fisseha; Johannes Keizer; Stephen Katz (J. Digit. Inf., 2004)