Comparison of somatic and motor skills 14-16 years old boys from selected secondary schools Bydgoszcz

Journal of Education, Health and Sport, Tom 3, Numer 5 (2013) s. 89-100
Hanna Żukowska, Mirosława Szark-Eckardt, Michalina Kuska, Marek Napierała, Walery Zukow