TY  - BOOK
AU  - Schmitz P Ed.
ED  - International conference on GI-BifoA (1973 : Koln)
TI  - Proceeding on GI-Bifoa
T2  - Lecture notes in computer science; 9
U1  - B2893p1,N73, 113L4 
PY  - 1974///
CY  - Berlin
PB  - Springer-verlag       
KW  - Operational research
ER  -