KALINOWSKI, Paweł, KALINOWSKI, Sebastian, JERSZYŃSKI, Damian, NOWAKOWSKA, Monika, KONARSKI, Jan and PIETRANIS, Dariusz. The determinants of footballers’ effectiveness in a German club. Quality in Sport. Online. 20 October 2019. Vol. 5, no. 3, pp. 34-42. [Accessed 18 July 2024]. DOI 10.12775/QS.2019.015.