Marzena Kryszkiewicz James F. Peters Henryk Rybinski Andrzej Skowron Rough Sets and Intelligent Systems Paradigms, International Conference, RSEISP 2007, Warsaw, Poland, June 28-30, 2007, Proceedings RSEISP Lecture Notes in Computer Science 4585 Springer 2007 978-3-540-73450-5 db/conf/rseisp/rseisp2007.html