@article{DAN_1962_147_5_a0,
     author = {A. Arkhangel'skii},
     title = {Open and almost open mappings of topological spaces},
     journal = {Doklady Akademii Nauk},
     pages = {999--1002},
     publisher = {mathdoc},
     volume = {147},
     number = {5},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_147_5_a0/}
}