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@article{PIM_1974_N_S_17_31_a17, author = {Momir S. Stojanovi\'c}, title = {On multivalued quotient mappings}, journal = {Publications de l'Institut Math\'ematique}, pages = {155 }, publisher = {mathdoc}, volume = {_N_S_17}, number = {31}, year = {1974}, url = {http://geodesic.mathdoc.fr/item/PIM_1974_N_S_17_31_a17/} }
Momir S. Stojanović. On multivalued quotient mappings. Publications de l'Institut Mathématique, _N_S_17 (1974) no. 31, p. 155 . http://geodesic.mathdoc.fr/item/PIM_1974_N_S_17_31_a17/