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@article{DAN_1973_209_1_a3, author = {B. D. Gel'man}, title = {A generalization of {Kakutani{\textquoteright}s} fixed-point theorem to many-valued mappings}, journal = {Doklady Akademii Nauk}, pages = {22--24}, publisher = {mathdoc}, volume = {209}, number = {1}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_209_1_a3/} }
B. D. Gel'man. A generalization of Kakutani’s fixed-point theorem to many-valued mappings. Doklady Akademii Nauk, Tome 209 (1973) no. 1, pp. 22-24. http://geodesic.mathdoc.fr/item/DAN_1973_209_1_a3/