%0 Journal Article %A A. A. Zenkin %T Generalization of Wieferich's theorem to the case of positive integral summands %J Doklady Akademii Nauk %D 1982 %P 282-285 %V 264 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_264_2_a5/ %G ru %F DAN_1982_264_2_a5