%0 Journal Article %A A. B. Antonevich %T The index of a pseudodifferential operator with a finite group of shifts %J Doklady Akademii Nauk %D 1970 %P 751-752 %V 190 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_190_4_a0/ %G ru %F DAN_1970_190_4_a0