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R. Loverance. CULTURAL HERITAGE on line: the challenge of accessibility and preservation. International Conference Firenze, 14th-16th December 2006, page 232--239. Foundation Rinascimento Digitale, (2006)
A. Hotho, R. Jäschke, C. Schmitz, and G. Stumme. Proceedings of the First Conceptual Structures Tool Interoperability Workshop at the 14th International Conference on Conceptual Structures, page 87-102. Aalborg, Aalborg Universitetsforlag, (2006)