TY  - JOUR
AU  - Ernst Alfred Ruh
TI  - On teh Automorphism group of a G-structure.
JO  - Commentarii mathematici Helvetici
PY  - 1964
SP  - 189
EP  - 204
VL  - 39
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1964__39_139287/
ID  - CMH_1964__39_139287
ER  -