Alabuzhev, S.A., и A.P. Knyazev. «PUBLIC INFORMATION SERVICES OF REGIONAL SPORTS FEDERATIONS: DEMAND AND SUPPLY SITUATION SURVEY». Theory and Practice of Physical Culture, no. 12 (январь 17, 2022): 65–67. просмотрено май 20, 2024. http://tpfk.ru/index.php/TPPC/article/view/91.