TY  - JOUR
AU  - V. G. Kopp
TI  - Invariants of groups of infinitesimal motions of a three-dimensional Lorentz space
JO  - Trudy Geometricheskogo Seminara
PY  - 1986
SP  - 13
EP  - 29
VL  - 17
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KUTGS_1986_17_a2/
LA  - ru
ID  - KUTGS_1986_17_a2
ER  -