TY  - BOOK
AU  - Nebel Bernhard
TI  - Reasoning and revision in hyprid representation systems
T2  - Lecture notes in Artificial intelligence; 422
U1  - D65,8(B):(S:72), N0 
PY  - 1990///
CY  - Berlin
PB  - Springer Verlag      
KW  - Computer science
ER  -