Toubekis, A. G., Beidaris, N., Botonis, P. G., & Koskolou, M. (2017). Severe hypoxemia induced by prolonged expiration and reduced frequency breathing during submaximal swimming. Journal of sports sciences, 35(11), S. 1025-1033. doi:10.1080/02640414.2016.1209304

Toubekis, Argyris G., Nikolaos Beidaris, Petros G. Botonis, and Maria Koskolou. "Severe Hypoxemia Induced By Prolonged Expiration and Reduced Frequency Breathing During Submaximal Swimming." Journal of Sports Sciences 35, no. 11 (2017): S. 1025-1033.

Toubekis, Argyris G., Nikolaos Beidaris, Petros G. Botonis, and Maria Koskolou. "Severe Hypoxemia Induced By Prolonged Expiration and Reduced Frequency Breathing During Submaximal Swimming." Journal of Sports Sciences 35.11 (2017): S. 1025-1033.