TY  - BOOK
ID  - R.1991a
T1  - Uncertainty and Vagueness in Knowledge Based Systems: Numerical Methods
A1  - Kruse, Rudolf
A1  - Schwecke, E.
A1  - Heinsohn, J.
T3  - Series Artificial Intelligence
Y1  - 1991
PB  - Springer
AD  - Berlin
ER  -