@article{GDZPPN002201003,
title = {PGL (4) acts transitively on M (-1,2).},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {346},
year = {1984},
pages = {48-53},
zbl = {0515.14012},
url = {http://dml.mathdoc.fr/item/GDZPPN002201003}
}
Moore, Ross; Wardelmann, Reiner. PGL (4) acts transitively on M (-1,2).. Journal für die reine und angewandte Mathematik, Tome 346 (1984) pp. 48-53. http://gdmltest.u-ga.fr/item/GDZPPN002201003/