TY  - BOOK
AU  - Kruse R
AU  -  Heinsohn J
AU  -  Schwecke E
TI  - Uncertainity and vagueness in knowledge based systems
T2  - Artifical  Intelligence
U1  - D65,8(B):(S:72), N1 
PY  - 1991///
CY  - Berlin
PB  - Springer-Verlag         
KW  - computer in knowledge based systems
ER  -