Zalavras Α., Soulas Δ., Voutselas Β., Kritikos Α., & Daskalakis Σ. (2007). The Effects of Two Different Methods of Interval Training on Maximal Oxygen Uptake. Inquiries in Physical Education and Sport, 5(1), 134–142. Retrieved from https://journals.lib.uth.gr/index.php/inquiries/article/view/1189