TY  - BOOK
AU  - Brans, J P (Ed.) 
TI  - Proceedings of the ninth IFORS international conference on operational research, Hamburg, Germany, July 20-24 1981 
PY  - 1981///
CY  - Amsterdam: 
PB  - North-Holland Publishing Company, 
KW  - Business management
KW  - Planning
KW  - Goals
ER  -