James F. Peters Andrzej Skowron Victor W. Marek Ewa Orlowska Roman Slowinski Wojciech Ziarko Transactions on Rough Sets VII, Commemorating the Life and Work of Zdzislaw Pawlak, Part II Lecture Notes in Computer Science 4400 Springer 2007 978-3-540-71662-4 T. Rough Sets db/journals/trs/trs7.html