Ksiazek, A., Kopeca, A., Slowinska-Lisowska, M. Julkaisussa Journal of Combat Sports and Martial Arts (2014)
Wolska, B., Smulskij, V., Jagiello, W. Julkaisussa Baltic Journal of Health and Physical Activity (2009)
Boguszewski, D. Julkaisussa Baltic Journal of Health and Physical Activity (2009)