V. Preda

Optimality conditions and duality in multiple objective programming involving semilocally convex and related functions

V. Preda, V. Preda, 1996 .

On Constraint Qualification in Multiobjective Optimization Problems: Semidifferentiable Case

V. Preda, V. Preda, I. Chiţescu, 1999 .

Oil minmax programming problems containing n-set functions

V. Preda, V. Preda, 1991 .