Jäschke, R.; Hotho, A.; Schmitz, C.; Ganter, B. & Stumme, G. (2008), 'Discovering Shared Conceptualizations in Folksonomies', Web Semantics: Science, Services and Agents on the World Wide Web 6 , 38--53 .
Le, D. N. & Goh, A. (2007), Current Practices in Measuring Ontological Concept Similarity, in , pp. 266-269 .