ŠKORIK, Marián et al. The comparison of plyometric and speed training effect on speed abilities of soccer players: pilot study. In Physical activity review : international scientific journal. - Czestochowa : PPHU Projack, 2023. ISSN 2300-5076, 2023, vol. 11, no. 2, pp. 75-85. Dostupné na: https://doi.org/10.16926/par.2023.11.23.