%0 Journal Article %A Radó, F. %T Congruence-Preserving Isomorphisms of the Translation Group associated with a Translation Plane %J Canadian journal of mathematics %D 1971 %P 214-221 %V 23 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-021-5/ %R 10.4153/CJM-1971-021-5 %F 10_4153_CJM_1971_021_5