@article{MZ_1973__135_172003,
     author = {Norman L. Johnson and Michael J. Kallaher},
     title = {Transitive {Collineation} {Groups} on {Affine} {Planes.}},
     journal = {Mathematische Zeitschrift},
     pages = {149--164},
     publisher = {mathdoc},
     volume = {135},
     year = {1973},
     zbl = {0274.50017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1973__135_172003/}
}