@article{RO_2015__49_3_451_0,
     author = {Slimani, Hachem and Radjef, Mohammed Said},
     title = {Fritz {John} type optimality and duality in nonlinear programming under weak pseudo-invexity},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {451--472},
     publisher = {EDP-Sciences},
     volume = {49},
     number = {3},
     year = {2015},
     doi = {10.1051/ro/2014046},
     mrnumber = {3349129},
     zbl = {1338.90326},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2014046/}
}