@article{GDZPPN002432560,
title = {Involutory Collineations of Finite Planes.},
journal = {Mathematische Zeitschrift},
volume = {192},
year = {1986},
pages = {235-240},
zbl = {0599.51010},
url = {http://dml.mathdoc.fr/item/GDZPPN002432560}
}
Ho, C.Y. Involutory Collineations of Finite Planes.. Mathematische Zeitschrift, Tome 192 (1986) pp. 235-240. http://gdmltest.u-ga.fr/item/GDZPPN002432560/