Rafailakis Λευτέρης, Soulas Δημήτριος, and Jamurtas Αθανάσιος Ζ. 2015. “Morphological and Functional Adaptations in the Heart of Young Athletes Due to Endurance Training”. Inquiries in Physical Education and Sport 13 (3):37-49. https://journals.lib.uth.gr/index.php/inquiries/article/view/1461.