Savonis, Aurelijus, and Algirdas Čepulėnas. “Physical Fitness Results of Soldiers Of Different Age Groups in the Land Force of the Lithuanian Professional Armed Forces in 2010–2011”. Baltic Journal of Sport and Health Sciences 1, no. 88 (May 4, 2018). Accessed April 23, 2021. https://journals.lsu.lt/baltic-journal-of-sport-health/article/view/149.