@article{MZ_1966__92_170555,
     author = {F.C. Piper},
     title = {Collineation {Groups} {Containing} {Elations.} {II.}},
     journal = {Mathematische Zeitschrift},
     pages = {281--287},
     publisher = {mathdoc},
     volume = {92},
     year = {1966},
     zbl = {0158.19406},
     url = {http://geodesic.mathdoc.fr/item/MZ_1966__92_170555/}
}