Vidranski, T., P. Otkovic, and D. Z. Tadijanov. “Differences in Technical-Tactical Indicators of Karate Kumite Between the World Championship in Tokyo 2008 and Madrid 2018”. Journal of Human Sport and Exercise, vol. 14, no. 5proc, Dec. 2019, pp. S2470-S2479, https://www.jhse.ua.es/article/view/2019-v14-n5-proc-technical-tactical-indicators-karate-kumite-wor.