References
- Clarke , F. H. 1975 . Generalized gradients and applications . Transactions of the American Math. Society , 205 : 247 – 262 .
- Clarke , F. H . 1976 . A new approach to Lagrange multipliers . Math, of Operations Res , 2 : 165 – 174 .
- Hiriart-Urruty , J. B . 1978 . On optimality conditions in nondifferentiable programming . Math. Programming , 14 : 73 – 86 .
- Hiriart-Urruty , J. B . 1979 . Tangent cones, generalized gradients and mathematical programming in Banach spaces . Math, of Operations Res , 4 : 79 – 97 .
- Hiriart-Urruty , J. B . 1979 . New concepts in nondifferentiable programming, Journees d'Analyse non Convexe (Mai 1977), Universite de Pau (France) . Bull, de la Societe Math, de France , 60 : 57 – 85 .
- Hiriart-Urruty , J. B . 1981 . Optimality conditions for discrete nonlinear norm-approximation problems . Lecture Notes in Control and Information Sciences , 30 : 29 – 41 .
- Rockafeliar , R. T . 1970 . Convex Analysis , Princeton University Press .
- Rockafeliar , R. T . 1980 . Generalized directional derivatives and subgradients of nonconvex functions . Canad. J. Math , 32 : 257 – 280 .
- Rockafeliar , R. T . 1979 . Clarke's tangent cone and the boundaries of closed sets in R . Nonlinear Anal , 3 : 145 – 154 .
- Rockafeliar , R. T . 1979 . Directionally Lipschitzian functions and subdifferential calculus . Proc. London. Math. Soc , 39 : 331 – 335 .
- Rockafeliar , R. T . Proximal subgradients, marginal values, and augmented Lagrangians in nonconvex optimization . Math, of Operations Res .