%0 Journal Article %A V. I. Berdyshev %T The motion of an observer over a cone in $\mathbb{R}^3$ under counteraction from an object %J Trudy Instituta matematiki i mehaniki %D 2023 %P 49-54 %V 29 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TIMM_2023_29_4_a3/ %G ru %F TIMM_2023_29_4_a3