@Article{379464,
     author = "Zbigniew Bujak, Mircea V. Muntean, Dariusz Gierczuk",
     title = "The hierarchy of professional activities of martial arts and mixed martial arts coaches",
     year =  2014,
     volume =  14,
     number =  2,
     journal =  Ido Movement for Culture : journal of martial arts anthropology : theory of culture, psychophysical culture, cultural tourism, anthropology of martial arts, combat sports,
     pages =  s. 29-35,
    }