TY  - SER
TI  - International abstracts in operation research
SN  - 0020-580X
PY  - 1961///
CY  - Amsterdam
PB  - North-Holland Publishing Company
KW  - Operation research
KW  - Abstracts
KW  - Periodicals
N1  - UKM: v.3-42 (1963-1991). Langganan tamat
ER  -