Gkreka Σ., Barzouka Κ., Drikos Σ., and Sotiropoulos Κ. “Performance of Male and Female Top-Level Outside Hitters Regarding the Spatiotemporal Characteristics of the Volleyball Spike”. Inquiries in Physical Education and Sport, vol. 19, no. 1, Mar. 2021, pp. 30-45, doi:10.26253/heal.uth.ojs.ispe.2021.1557.