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@article{MZM_1987_42_2_a12, author = {V. V. Popov}, title = {Lindel\"of number of the space of closed groups}, journal = {Matemati\v{c}eskie zametki}, pages = {279--287}, publisher = {mathdoc}, volume = {42}, number = {2}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_2_a12/} }
V. V. Popov. Lindel\"of number of the space of closed groups. Matematičeskie zametki, Tome 42 (1987) no. 2, pp. 279-287. http://geodesic.mathdoc.fr/item/MZM_1987_42_2_a12/