TY  - DATA
AU  - Danny C. Sorensen; Roger J.-B. Wets
TI  - Nondifferential and Variational Techniques in Optimization
SN  - 9783642008153
PY  - 1982///
PB  - Springer Berlin Heidelberg
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0120955
ER  -