@article{YJOR_2008_18_2_a1,
     author = {Massimiliano Ferrara and Maria Viorica Stefanescu},
     title = {Optimality {Conditions} and {Duality} in {Multiobjective} {Programming} {With} $(Phi, 
ho)${-Invexity}},
     journal = {Yugoslav journal of operations research},
     pages = {153 },
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2008},
     zbl = {1199.90025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2008_18_2_a1/}
}