Kellis Ηρακλής, Goudas Μάριος, Vernadakis Νικόλαος, Digelidis Νικόλαος, and Kioumourtzoglou Ευθύμης. 2007. “Evaluation and Viability of the Olympic Education Program”. Inquiries in Physical Education and Sport 5 (3):328-40. https://doi.org/10.26253/heal.uth.ojs.ispe.2007.1211.