TY  - JOUR
AU  - V. K. Beloshapka
TI  - Invariants of CR-manifolds associated with the tangent quadric
JO  - Matematičeskie zametki
PY  - 1996
SP  - 42
EP  - 52
VL  - 59
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1996_59_1_a3/
LA  - ru
ID  - MZM_1996_59_1_a3
ER  -