SAVCHENKO, Valentyn M. Role of special breathing techniques in current physiotherapy practice for chronic obstructive pulmonary diseases. Journal of Education, Health and Sport, [S. l.], v. 8, n. 1, p. 378–390, 2018. Disponível em: https://apcz.umk.pl/JEHS/article/view/6634. Acesso em: 19 apr. 2025.