TY  - JOUR
AU  - S. R. Gordeev
TI  - The index of operators with shift, and cyclic subgroups
JO  - Matematičeskie zametki
PY  - 1990
SP  - 146
EP  - 148
VL  - 48
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1990_48_1_a20/
LA  - ru
ID  - MZM_1990_48_1_a20
ER  -