TY  - JOUR
AU  - Lester, J. A.
TI  - Cone Preserving Mappings for Quadratic Cones Over Arbitrary Fields
JO  - Canadian journal of mathematics
PY  - 1977
SP  - 1247
EP  - 1253
VL  - 29
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-124-1/
DO  - 10.4153/CJM-1977-124-1
ID  - 10_4153_CJM_1977_124_1
ER  -