Vilkas, Audronius, and Rimantas Mėlinis. “Changes of Physical Development of Learners (11–17 Year Old), Their Physical and Functional Fitness Indicators and Reference Scales”. Pedagogika / Pedagogy 115, no. 3 (September 10, 2014): 105–121. Accessed March 10, 2025. https://ejournals.vdu.lt/index.php/Pedagogika/article/view/1709.