Murphy, Alistair P.; Duffield, Rob; Kellett, Aaron; Reid, Machar (2016). A Comparison of the Perceptual and Technical Demands of Tennis Training, Simulated Match Play, and Competitive Tournaments. International Journal of Sports Physiology and Performance, 11(1), 40–47.
doi:10.1123/ijspp.2014-0464
url to share this paper:
An interview with Sci-Hub Founder Alexandra Elbakyan Who exactly should pay for academic research