Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1970_191_3_a0, author = {A. D. Aleksandrov}, title = {Mappings of families of sets}, journal = {Doklady Akademii Nauk}, pages = {503--506}, publisher = {mathdoc}, volume = {191}, number = {3}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_191_3_a0/} }
A. D. Aleksandrov. Mappings of families of sets. Doklady Akademii Nauk, Tome 191 (1970) no. 3, pp. 503-506. http://geodesic.mathdoc.fr/item/DAN_1970_191_3_a0/