%0 Journal Article %A A. B. Antonevich %T Elliptic pseudodifferential operators with a finite group of shifts %J Izvestiya. Mathematics %D 1973 %P 661-673 %V 7 %N 3 %U http://geodesic.mathdoc.fr/item/IM2_1973_7_3_a10/ %G en %F IM2_1973_7_3_a10