ХОРОШУХА, М. Ф. Health-improving action effects of the system of P. K. Ivanov and Breathing Technique on the method of K. P. Buteyko for people of different age (from the long-term experience of the author). Slobozhanskyi Herald of Science and Sport, [S. l.], n. 1(51), p. 107–111, 2016. DOI: 10.15391/snsv.2016-1.018. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/61279. Acesso em: 7 dec. 2025.