Каршиганова Е, Усина Ж, Кусмиденов М. Professionals and amateurs: a comparative analysis of the coaching activities of chess players: Каршиганова Е.М., Усина Ж.А., Кусмиденов М.Е. TMFK [Internet]. 2022 Dec. 18 [cited 2024 Jul. 3];70(4):115-22. Available from: http://46.34.130.122/index.php/tmfk/article/view/240