Dependencies of speed abilities and physical development of children at the age of 6 – 7 years

Čillík, Ivan, 1958-

Dependencies of speed abilities and physical development of children at the age of 6 – 7 years / Ivan Čillík, Tomáš Willwéber

In Journal of physical education & health : social perspective. -- Opole : Opole University of Technology, 2017. -- ISSN 2084-6002. -- Vol. 6, no. 9 (2017), pp. 5-11