KRESTA, Jan - ŠKOPEK, Martin - PONÍŽIL, Pavel. Adjustment of the correct sitting position on bicykle of recreationnal cyclists : inspiration for physical education at school. In Journal of outdoor activities, 2019, vol. 13, no. 1, strana 17-21. ISSN 1802-3908. Ústí nad Labem : University of J.E. Purkyně, 2019.