TY  - JOUR
AU  - V. Yu. Ovsienko
AU  - C. Roger
TI  - Deformations of Poisson brackets and extensions of Lie algebras of contact vector fields
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1992
SP  - 135
EP  - 191
VL  - 47
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1992_47_6_a2/
LA  - en
ID  - RM_1992_47_6_a2
ER  -