Priklerová, S. Veröffentlicht in Acta Facultatis Educationis Physicae Universitatis Comenianae (2018) “... on strength and endurance. The research was realized in these age categories: younger (n=40) and older juniors...”
Haugen, T. A., Tonnessen, E., Seiler. S. Veröffentlicht in The Journal of Sports Medicine and Physical Fitness (2016) “...strength...”