Borea, F., A. Ceciliani, and F. D’Elia. “Bridging the Strength Gap Between Able-Bodied and Disabled Tennis Players Using the Bill Starr Training Program”. Journal of Human Sport and Exercise, vol. 16, no. 4proc, Nov. 2021, pp. S2005-S2013, doi:10.14198/jhse.2021.16.Proc4.47.