GAJEWSKI, Mikołaj, ALCER, Magdalena, GRYGIERZEC, Ewa, JABŁOŃSKI, Karol and SZEFLER – DERELA, Justyna. The effect of squash training on shoulder girdle mobility and frequency of injury among player. Journal of Education, Health and Sport. Online. 30 May 2017. Vol. 7, no. 5, pp. 756-765. [Accessed 28 June 2025].