TY  - BOOK
AU  - Polkowski, Lech et al, ed.
TI  - Rough set methods and applications: New Developments in Knowledge Discovery in Information systems
SN  - 3790813281
U1  - 006.3 
PY  - 2000///
CY  - New York
PB  - Physica-Verlag Heidelberg
ER  -