About Jerzy Stefanowski Books by Jerzy Stefanowski Rough Sets, Fuzzy Sets, Data Mining and Granular Computing 11th International Conference, RSFDGrC 2007, Toronto, Canada, May 14-16, 2007 by (author) Aijun An edited by Jerzy Stefanowski, Sheela Ramanna, Cory Butz & Witold Pedrycz