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@article{MZ_1967__96_170681, author = {John G. Thompson}, title = {An {Example} of {Core-Free} {Quasinormal} {Subgroups} of {p-Groups.}}, journal = {Mathematische Zeitschrift}, pages = {226--227}, publisher = {mathdoc}, volume = {96}, year = {1967}, zbl = {0189.31702}, url = {http://geodesic.mathdoc.fr/item/MZ_1967__96_170681/} }
John G. Thompson. An Example of Core-Free Quasinormal Subgroups of p-Groups.. Mathematische Zeitschrift, Tome 96 (1967), pp. 226-227. http://geodesic.mathdoc.fr/item/MZ_1967__96_170681/