TY  - JOUR
AU  - S. R. Gordeev
TI  - On the index and the homotopic classification of Noetherian operators with a finite group of shifts
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1991
SP  - 66
EP  - 68
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1991_25_1_a8/
LA  - ru
ID  - FAA_1991_25_1_a8
ER  -