TY  - BOOK
AU  - Schroeder Heister P
ED  - International Workshop on Extensions of Logic Programming( 1989 : Tubingen )
ED  - International Workshop on Extensions of Logic Programming
TI  - Extensions of logic programming : papers
SN  - 3-540-53590-X
U1  - 5.115 
PY  - 1991///
CY  - Berlin
PB  - Springer Verlag
KW  - Computer science
KW  - Logic programming
ER  -