%0 Journal Article %A I. A. Kipriyanov %A M. I. Klyuchantsev %T Estimates of a surface potential which is generated by a generalized shift operator %J Doklady Akademii Nauk %D 1969 %P 997-1000 %V 188 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_188_5_a8/ %G ru %F DAN_1969_188_5_a8