@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/