@article{PMFA_1956_1_1_a2,
     author = {Smirnov, J. M.},
     title = {Proximitn{\'\i} prostory},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {14--23},
     year = {1956},
     volume = {1},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1956_1_1_a2/}
}