TY  - BOOK
AU  - Sorensen D C
AU  -  Wets R J B
ED  - Workshop on numerical techniques for systems engineering problems (1980 : Lexington)
TI  - Proceeding on Nondifferential and variational techniques in optimization
T2  - Mathematical programming study; 17
U1  - B311p1,N80, M2 
PY  - 1982///
CY  - Amsterdam
PB  - North-Holland Publishing        
KW  -  Systems engineering
KW  - Mathematical optimization
ER  -