A level of running speed of elite young soccer players at different positions

PIVOVARNIČEK, Pavol et al. A level of running speed of elite young soccer players at different positions. In Acta kinesiologica : international scientific journal of kinesiology. - Ljubuški : Physical Education Pedagogues Association, 2014. ISSN 1840-2976, June 2014, vol. 8, no. 1, pp. 21-26.