@article{DAN_1961_137_3_a11,
     author = {Z. Frol{\'\i}k},
     title = {Intrinsic characterization of spaces topologically complete in the sense of {E.~\v{C}ech}},
     journal = {Doklady Akademii Nauk},
     pages = {533--536},
     year = {1961},
     volume = {137},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_3_a11/}
}