TY  - JOUR
AU  - V. G. Kopp
TI  - Groups of infinitesimal revolutions of six-dimensional space of zero signature
JO  - Trudy Geometricheskogo Seminara
PY  - 1976
SP  - 43
EP  - 53
VL  - 9
UR  - http://geodesic.mathdoc.fr/item/KUTGS_1976_9_a6/
LA  - ru
ID  - KUTGS_1976_9_a6
ER  -