@article{MZ_1982__181_173229,
     author = {Makoto Hayashi},
     title = {A {Characteristic} {2-Subgroups} of a {Finite} {Special} {Group.}},
     journal = {Mathematische Zeitschrift},
     pages = {215--228},
     publisher = {mathdoc},
     volume = {181},
     year = {1982},
     zbl = {0477.20009},
     url = {http://geodesic.mathdoc.fr/item/MZ_1982__181_173229/}
}