@article{GDZPPN002403951,
title = {Unitary Groups in Hjelmslev-Moufang Planes.},
journal = {Mathematische Zeitschrift},
volume = {105},
year = {1968},
pages = {288-312},
zbl = {0174.23601},
url = {http://dml.mathdoc.fr/item/GDZPPN002403951}
}
Veldkamp, Ferdinand D. Unitary Groups in Hjelmslev-Moufang Planes.. Mathematische Zeitschrift, Tome 105 (1968) pp. 288-312. http://gdmltest.u-ga.fr/item/GDZPPN002403951/