%0 Journal Article %A Pablo Candela %A Carlos Catalá %A Juanjo Rué %A Oriol Serra %T On Motzkin's Problem in the Circle Group %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2021 %P 49-70 %V 314 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2021_314_a2/ %G ru %F TM_2021_314_a2