Patmanoglou Σ., Digelidis Ν., Mantis Κ., Papapetrou Λ., and Mavidis Α. “The Impact of the Command and Self-Check Teaching Styles in Goal Orientations, Perceived Motivational Climate and Perceived Athletic Ability in the Elementary”. Inquiries in Physical Education and Sport, vol. 5, no. 2, Sept. 2007, pp. 199-06, doi:10.26253/heal.uth.ojs.ispe.2007.1196.