Douka Ιωάννα, and Siatras Θεοφάνης. 2008. “Shoulder and Hip Muscles Maximal Strength in Female Gymnasts in Pre-Competitive and Competitive Levels”. Inquiries in Physical Education and Sport 6 (3):370-77. https://doi.org/10.26253/heal.uth.ojs.ispe.2008.1293.