TY  - BOOK
AU  - Sorensen D C
AU  -  Wets R J B Ed.
TI  - Non differential and variational techniques  in op
T2  - Workshop on Numerical Techniques for Systems Engineering Problems (1980) (Lexington). Mathematical Programming Study. 17
U1  - B7:3, M2 
PY  - 1982///
CY  - Amsterdam
PB  - North Holland         
KW  - Optimization
ER  -