TY  - JOUR
AU  - Walter Benz
TI  - On mappings preserving a single Lorentz-Minkowski-distance in Hjelmslev's classical plane.
JO  - Aequationes mathematicae
PY  - 1985
SP  - 80
EP  - 87
VL  - 28
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1985__28_137042/
ID  - AM2_1985__28_137042
ER  -