@article{GDZPPN002409399, title = {1-Dimensional Orbits in Flat Projective Planes.}, journal = {Mathematische Zeitschrift}, volume = {121}, year = {1971}, pages = {117-124}, zbl = {0207.19503}, url = {http://dml.mathdoc.fr/item/GDZPPN002409399} }
Groh, Hansjoachim. 1-Dimensional Orbits in Flat Projective Planes.. Mathematische Zeitschrift, Tome 121 (1971) pp. 117-124. http://gdmltest.u-ga.fr/item/GDZPPN002409399/