Millán-Sánchez, A., J. C. Morante Rábago, and A. Ureña Espa. “Differences in the Success of the Attack Between Outside and Opposite Hitters in High Level men’s Volleyball”. Journal of Human Sport and Exercise, vol. 12, no. 2, July 2017, pp. 251-6, doi:10.14198/jhse.2017.122.01.