TY  - BOOK
AU  - Simmons Donald M
TI  - Nonlinear programming for operations research
T2  - Prentice-Hall international series in management
U1  - B2893P, L5 
PY  - 1975///
CY  - Englewood
PB  - Clifs Prentice-Hall        
KW  - Mathematical programming
ER  -