A Dialectic Approach to Problem Solving Discovery Science Porto octobre, pp.417-424, 2009. ,
GCC : An Environment for Knowledge Management in Scientific Research and Higher Education Centres, Proceedings of I-KNOW '05, 2005. ,
GCC: A Knowledge Management Environment for Research Centers and Universities, Proceedings of the 8 th Asia-Pacific Web Conference, Harbin. Frontiers of WWW Research and Development -APWeb 2006. v. 3841, pp.652-667, 2006. ,