Pilewska, Wiesława, Malwina Skowrońska, and Beata Augustyńska. 2016. “Evaluation of Changes in Body Composition and Efficency of Women under the Influence of 4-Month Step-Aerobis Training”. Medical and Biological Sciences 30 (3):81-86. https://doi.org/10.12775/MBS.2016.027.