BERNERS-LEE, T. The Semantic Web. Scientific American. 2001, 284, 5, 34-43
EICHMANN, D. A Hybrid Approach to Software Repository Retrieval : Blending Faceted Classification and Type Signatures. 3rd International Conference on Software Engineering and Knowledge Engineering, Skokie, IL, 1991. 1991, 236-240
KLEIN, M. Searching for Services on the Semantic Web Using Process Ontologies. The Emerging Semantic Web-Selected papers from the first Semantic Web Working Symposium, Amsterdam, 2002. 2002, 159-172