Janowska, P., Wojdat, M., Bugajska, E., Paradowska, M., Wolska, B., Adam, M., & Stępniak, R. (2018). Comparative analysis of the level of aggression between the women practicing judo and Brazilian jiu-jitsu. Journal of Education, Health and Sport, 8(7), 408–417. Retrieved from https://apcz.umk.pl/JEHS/article/view/5704