Mizera, Olga, Anna Mróz, and Lucyna Kozlowska. 2018. “Differences in Body Composition Measured Using the Bioelectrical Impedance Analysis With Steel and Gel Electrodes – on an Example of Professional Fencers”. Journal of Education, Health and Sport 8 (3):228-41. https://apcz.umk.pl/JEHS/article/view/5349.