Сибіль [Maria Sybyl] М. Г.; Свищ [Yaroslav Svysch] Я. С.; Воронін [Denis Voronin] Д. М.; Кирилич [Maryana Kyrylych] М. І. Improve the quality of the third age life with health-improving systems which based on elements of breathing exercises. Slobozhanskyi Herald of Science and Sport, [S. l.], n. 5(38), p. 239–242, 2013. Disponível em: https://journals.uran.ua/index.php/1991-0177/article/view/20693. Acesso em: 1 may. 2024.