Faculty of Physical Education and Sport in Biała Podlaska, Department of Pedagogics, 2 Akademicka Street, 21-500 Biała Podlaska, tel.: + 48 83 3428776, fax: +48 83 3428800
Ernest Szum
The Josef Pilsudski University of Physical Education in Warsaw, Faculty of Physical Education and Sport in Biała Podlaska, Department of Pedagogics