%0 Journal Article %A A. A. Shlepkin %T On a sufficient condition for the existence of a periodic part in the Shunkov group %J The Bulletin of Irkutsk State University. Series Mathematics %D 2017 %P 90-105 %V 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2017_22_a6/ %G ru %F IIGUM_2017_22_a6