D’Elia, F., T. D’Isanto, G. Altavilla, and G. Raiola. “Evolution of Explosive Strength Data in Youth Volleyball Players Before and After Pandemic”. Teorìâ Ta Metodika Fìzičnogo Vihovannâ, Vol. 21, no. 4, Dec. 2021, pp. 375-80, doi:https://doi.org/10.17309/tmfv.2021.4.13.