@article{MMO_1954_3_a1,
     author = {N. Ya. Vilenkin},
     title = {Generalized normal divisors of topological groups and their applications to combinatorial topology},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {15--88},
     publisher = {mathdoc},
     volume = {3},
     year = {1954},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1954_3_a1/}
}