Martínez, J., C. Beltrán, I. Alcalá, and R. Gonzalez. “Application of “TRX” and ‘RIP Training’ to the Development of Strength Endurance in Tennis”. ITF Coaching & Sport Science Review, vol. 20, no. 58, Dec. 2012, pp. 15-18, doi:10.52383/itfcoaching.v20i58.426.