@article{DAN_1960_132_3_a0,
     author = {A. Arkhangel'skii},
     title = {External bases of sets lying in bicompacta},
     journal = {Doklady Akademii Nauk},
     pages = {495--496},
     year = {1960},
     volume = {132},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_132_3_a0/}
}