@article{GDZPPN002426587,
title = {On Groupoids Having a Linear Congruence Class Geometry.},
journal = {Mathematische Zeitschrift},
volume = {180},
year = {1982},
pages = {395-412},
zbl = {0471.51003},
url = {http://dml.mathdoc.fr/item/GDZPPN002426587}
}
Ihringer, Thomas. On Groupoids Having a Linear Congruence Class Geometry.. Mathematische Zeitschrift, Tome 180 (1982) pp. 395-412. http://gdmltest.u-ga.fr/item/GDZPPN002426587/