@article{JCA_1997_4_2_a4,
     author = {J. M. Gutierrez},
     title = {A {Generalization} of the {Quasiconvex} {Optimization} {Problem}},
     journal = {Journal of convex analysis},
     pages = {281--288},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/JCA_1997_4_2_a4/}
}