@article{RM_1965_20_2_a10, author = {I. A. Berezanskii}, title = {Ultracompleteness of the topological sum of a~countable family of lines}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, publisher = {mathdoc}, volume = {20}, number = {2}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/RM_1965_20_2_a10/} }