Conference paper (2005) - K Sigdel (author), K Bertels (author), KLM Bertels (author), K.L.M. Bertels (author), Koen Bertels (author), K. Bertels (author), B Pourebrahimi (author), B Pourebrahimi (author), S Vassiliadis (author), Stamatis Vassiliadis (author), Stamatis Vassiliadis (author), S Vassiliadis (author), Y Shuai (author)