TY  - BOOK
AU  - Kruse, R.
AU  - Kruse, R.; Schwecke, E. & Heinsohn, J.
TI  - Uncertainity and Vagueness in Knowledge Based Systems
SN  - 3540541659
U1  - 1.535 
PY  - 1991///
CY  - New York
PB  - Springer-Verlag Berlin
ER  -