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@article{AL_1990_29_1_a6, author = {S. G. Chekanov}, title = {Broad subgroups of some sporadic groups}, journal = {Algebra i logika}, pages = {82--101}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1990_29_1_a6/} }
S. G. Chekanov. Broad subgroups of some sporadic groups. Algebra i logika, Tome 29 (1990) no. 1, pp. 82-101. http://geodesic.mathdoc.fr/item/AL_1990_29_1_a6/