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@article{MZ_1970__114_171292, author = {John S. Wilson}, title = {Some {Properties} of {Groups} {Inherited} by {Normal} {Subgroups} of {Finite} {Index.}}, journal = {Mathematische Zeitschrift}, pages = {19--21}, publisher = {mathdoc}, volume = {114}, year = {1970}, zbl = {0181.03503}, url = {http://geodesic.mathdoc.fr/item/MZ_1970__114_171292/} }
John S. Wilson. Some Properties of Groups Inherited by Normal Subgroups of Finite Index.. Mathematische Zeitschrift, Tome 114 (1970), pp. 19-21. http://geodesic.mathdoc.fr/item/MZ_1970__114_171292/