Smoleń E, Cipora E, Zacharska J, Gazdowicz L. Physical activity among students of the University of the Third Age (U3A). Piel21w [Internet]. 2012 Dec. 1 [cited 2025 Jul. 26];11(4(41):55-60. Available from: https://czasopisma.umlub.pl/piel21w/article/view/2273