TY  - JOUR
AU  - G. R. Belitskii
TI  - Invariant normal forms of formal series
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1979
SP  - 59
EP  - 60
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a6/
LA  - ru
ID  - FAA_1979_13_1_a6
ER  -