@article{VMUMM_1967_6_a8,
     author = {M. M. Choban},
     title = {Perfect mappings and spaces of countable type},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {87--93},
     publisher = {mathdoc},
     number = {6},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1967_6_a8/}
}