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@article{FPM_1996_2_1_a16, author = {E. M. Kovyazina}, title = {$(\tau_1,\ldots,\tau_m)$-spaces for {Butler} groups}, journal = {Fundamentalʹna\^a i prikladna\^a matematika}, pages = {295--300}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FPM_1996_2_1_a16/} }
E. M. Kovyazina. $(\tau_1,\ldots,\tau_m)$-spaces for Butler groups. Fundamentalʹnaâ i prikladnaâ matematika, Tome 2 (1996) no. 1, pp. 295-300. http://geodesic.mathdoc.fr/item/FPM_1996_2_1_a16/