Čillík, Ivan, and Tomáš Willwéber. “Influence of an Exercise Programme on Level of Coordination in Children Aged 6 to 7”. Journal of Human Sport and Exercise 13, no. 2 (June 20, 2018): 455–465. Accessed April 17, 2024. https://www.jhse.ua.es/article/view/2018-v13-n2-exercise-programme-level-coordination-children.