Salvatore Greco, Yutaka Hata, Shoji Hirano, Masahiro Inuiguchi, Sadaaki Miyamoto, Hung Son Nguyen, Roman Słowiński 
Rough Sets and Current Trends in Computing 
 - Germany  Springer  2006 
978-3-540-49842-1 
Computer Science
Rough Sets and Current Trends in Computing