TY  - JOUR
AU  - G. R. Belickiǐ
TI  - Normal forms in relation to the filtering action of a~group
JO  - Trudy Moskovskogo matematičeskogo obŝestva
PY  - 1979
SP  - 3
EP  - 46
VL  - 40
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MMO_1979_40_a0/
LA  - ru
ID  - MMO_1979_40_a0
ER  -