%0 Journal Article %A S. O. Nikanorov %T Study of mathematical models of economic processes by methods of the theory of covering mappings %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 2022 %P 91-100 %V 207 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_2022_207_a9/ %G ru %F INTO_2022_207_a9