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@article{MMO_1970_22_a4, author = {M. M. \v{C}oban}, title = {Multi-valued mappings and {Borel} sets}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {229--250}, publisher = {mathdoc}, volume = {22}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1970_22_a4/} }
M. M. Čoban. Multi-valued mappings and Borel sets. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 22 (1970), pp. 229-250. http://geodesic.mathdoc.fr/item/MMO_1970_22_a4/