KHIMENES, K.; BRISKIN, Y.; PITYN, M.; MALANYUK, L. FORMATION OF COMPETITION SYSTEM COMPONENTS IN PROFESSIONAL TENNIS BEFORE THE BEGINNING OF THE "TENNIS OPEN ERA". Спортивна наука та здоров’я людини, [S. l.], n. 1(9), 2023. DOI: 10.28925/2664-2069.2023.111. Disponível em: http://sporthealth.kubg.edu.ua/article/view/279054. Acesso em: 13 бер. 2025.