TY  - BOOK
AU  - Kaplan,Wilfred
TI  - Maxima and minima with applications: practical optimization and duality 
SN  - 0471252891
AV  - QA306  .K36 1999
PY  - 1999///
CY  - New York
PB  - John Wiley
KW  - Maxima and minima
KW  - Mathematical optimization
ER  -