Skopowska, A., Biernacki, M., Dekowska, M., Łukowicz, M., Łukasz, S. and Filarecka, A. 2018. Therapeutic procedures in shoulder impingement syndrome (SIS) for professionally active people: randomized research. Pedagogy and Psychology of Sport. 4, 2 (Mar. 2018), 26–42. DOI:https://doi.org/10.12775/PPS.2018.008.