L. Silva, M. Abel, C. Dorneles, und C. Heuser. International Symposium in Knowledge Management and Document Management - ISKM/DM, Curitiba, Brasil, (2001)
F. Benedetti, M. Abel, und C. Heuser. International Symposium in Knowledge Management and Document Management - ISKM/DM, Seite 173-193. Curitiba, (2001)