@article{M2AN_1972__6_1_15_0,
     author = {Bereanu, Bernard},
     title = {Quasi-convexity, strictly quasi-convexity and pseudo-convexity of composite objective functions},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {15--26},
     publisher = {Dunod},
     address = {Paris},
     volume = {6},
     number = {R1},
     year = {1972},
     mrnumber = {318417},
     zbl = {0268.90052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/M2AN_1972__6_1_15_0/}
}