@Article{ authors = " Heloiana K. C. Faro, Marilia P. M. Tavares, Petrus M. D. Gantois, Daniel C. Pereira, Mayra N. M. de Lima", title = "Comparison of competitive anxiety and self-confidence in Brazilian Jiu-Jitsu skills levels : A cross-sectional in-event study ", journal = "Ido Movement for Culture : journal of martial arts anthropology : theory of culture, psychophysical culture, cultural tourism, anthropology of martial arts, combat sports", issue = "2020 / Tom 20 / Numer 1", pages = "30 - 39" }