@article{MZ_1964__85_170301,
     author = {Frederick Hoffmann},
     title = {Nilpotent height of finite groups admitting fixed-point-free automorphisms.},
     journal = {Mathematische Zeitschrift},
     pages = {260--267},
     publisher = {mathdoc},
     volume = {85},
     year = {1964},
     zbl = {0126.27001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1964__85_170301/}
}