TY  - BOOK
AU  - "Vicen� Torra, Anders Dahlbom, Yasuo Narukawa"
TI  - "Fuzzy Sets, Rough Sets, Multisets and Clustering"
SN  - 978-3-319-47557-8
PB  - Springer
KW  - Engineering; Computational Intelligence
UR  - http://link.springer.com/openurl?genre=book&isbn=978-3-319-47557-8
ER  -