@article{1102996009, author = {Ostrom, T. G.}, title = {Collineation groups of semi-translation planes.}, journal = {Pacific J. Math.}, volume = {15}, number = {4}, year = {1965}, pages = { 273-279}, language = {en}, url = {http://dml.mathdoc.fr/item/1102996009} }
Ostrom, T. G. Collineation groups of semi-translation planes.. Pacific J. Math., Tome 15 (1965) no. 4, pp. 273-279. http://gdmltest.u-ga.fr/item/1102996009/