Effectiveness of the "IAAF kids' athletics project" in levelling changes of general physical performance among boys of early school age

WILLWÉBER, Tomáš. Effectiveness of the "IAAF kids' athletics project" in levelling changes of general physical performance among boys of early school age. In Journal of physical education and health : social perspective. - Opole : Opole University of Technology, 2016. ISSN 2084-6002, 2016, vol. 5, no. 8, pp. 21-28.