@article{MZ_1962__79_170078,
     author = {Zvonimir Janko},
     title = {Endliche {Gruppen} mit lauter nilpotenten zweitmaximalen {Untergruppen.}},
     journal = {Mathematische Zeitschrift},
     pages = {422--424},
     publisher = {mathdoc},
     volume = {79},
     year = {1962},
     zbl = {0104.24902},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170078/}
}