KOSENDIAK, Jan; PTAK, Ewelina. Psychological Support as a Factor of the Training Process Quality Improvement. Quality in Sport, [S. l.], v. 3, n. 1, p. 57–71, 2017. DOI: 10.12775/QS.2017.006. Disponível em: https://apcz.umk.pl/QS/article/view/QS.2017.006. Acesso em: 8 jul. 2025.