%0 Journal Article %A A. M. Ivanov %T A property of $p$-serving subgroups of groups of $p$-adic integers %J Matematičeskie zametki %D 1980 %P 859-867 %V 27 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1980_27_6_a2/ %G ru %F MZM_1980_27_6_a2