ATTRAY, H.; ATTRAY, S. Cost of an unforced error in tennis: a statistical approach. ITF Coaching & Sport Science Review , London, U.K., v. 29, n. 84, p. 12–14, 2021. DOI: 10.52383/itfcoaching.v29i84.200. Disponível em: https://itfcoachingreview.com/index.php/journal/article/view/200. Acesso em: 7 may. 2024.