@article{DAN_1962_144_3_a11,
     author = {L. B. Shneperman},
     title = {Semigroups of continuous transformations},
     journal = {Doklady Akademii Nauk},
     pages = {509--511},
     year = {1962},
     volume = {144},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_3_a11/}
}