@article{MZ_1967__97_170717,
     author = {Edward L. jr. Spitznagel},
     title = {Hall {Subgroups} of {Certain} {Families} of {Finite} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {259--290},
     year = {1967},
     volume = {97},
     zbl = {0183.03104},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__97_170717/}
}