@article{M2AN_1972__6_1_15_0,
     author = {Bereanu, Bernard},
     title = {Quasi-convexity, strictly quasi-convexity and pseudo-convexity of composite objective functions},
     journal = {Revue fran\c{c}aise d'automatique informatique recherche op\'erationnelle. Math\'ematique},
     pages = {15--26},
     year = {1972},
     publisher = {Dunod},
     volume = {6},
     number = {R1},
     mrnumber = {318417},
     zbl = {0268.90052},
     language = {en},
     url = {https://www.numdam.org/item/M2AN_1972__6_1_15_0/}
}