@article{MZ_1968__107_171065,
     author = {A. Wagner and F.C. Piper},
     title = {Faithful {Orbits} of {Collineation} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {212--220},
     publisher = {mathdoc},
     volume = {107},
     year = {1968},
     zbl = {0164.20901},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__107_171065/}
}