@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 = {473004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1999_8_2B_1_a6/}
}