[1]
M. Krawczyk and M. Pociecha, “INFLUENCE OF A 6-WEEK MIXED BALLISTIC-PLYOMETRIC TRAINING ON THE LEVEL OF SELECTED STRENGTH AND SPEED INDICES OF THE LOWER LIMBS IN YOUNG FOOTBALL PLAYERS”, SIE, vol. 4, pp. 198–206, May 2019, doi: 10.17770/sie2019vol4.3718.