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@article{BUMI_1999_8_2B_1_a6, author = {Bonmassar, C. and Scoppola, C. M.}, title = {Normally constrained $p$-groups}, journal = {Bollettino della Unione matematica italiana}, pages = {161--168}, publisher = {mathdoc}, volume = {Ser. 8, 2B}, number = {1}, year = {1999}, zbl = {0920.20016}, mrnumber = {MR1794548}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1999_8_2B_1_a6/} }
Bonmassar, C.; Scoppola, C. M. Normally constrained $p$-groups. Bollettino della Unione matematica italiana, Série 8, 2B (1999) no. 1, pp. 161-168. http://geodesic.mathdoc.fr/item/BUMI_1999_8_2B_1_a6/