%0 Journal Article %A P. A. Myshkis %A A. G. Tatashev %A M. V. Yashina %T Discrete closed one-particle chain of contours %J Prikladnaâ diskretnaâ matematika %D 2021 %P 114-125 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2021_2_a7/ %G ru %F PDM_2021_2_a7