TY  - BOOK
AU  - Wentzel, E. S.
TI  - Operations research: a methodological approach 
SN  - 5030002278
U1  - 001.424 
PY  - 1988///
CY  - Moscow
PB  - Mir Publishers
KW  - Research
KW  - Operations research
KW  - Linear programming
N1  - It includes bibliographical information
ER  -