TY  - BOOK
AU  - Balinski M L Ed.
AU  -  hellerman Eli Ed.
TI  - Computational practice in mathematical programming
T2  - Mathematical programming study; 4
U1  - B2893P0bD65,8(B), L65-;1 
PY  - 1975///
CY  - Oxford
PB  - North-holland         
ER  -