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@article{AL_1991_30_6_a1, author = {Yu. L. Ershov}, title = {Projective products of profinite groups}, journal = {Algebra i logika}, pages = {638--651}, publisher = {mathdoc}, volume = {30}, number = {6}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1991_30_6_a1/} }
Yu. L. Ershov. Projective products of profinite groups. Algebra i logika, Tome 30 (1991) no. 6, pp. 638-651. http://geodesic.mathdoc.fr/item/AL_1991_30_6_a1/