Żyłka-Reut, Anita Żyłka-Reut, Ewa Smoleń, and Lucyna Gazdowicz. 2012. “Subjective Life Satisfaction Among the University of the Third Age Students Vs. Socio-Demographic Conditions and Health Status”. Medical and Biological Sciences 26 (4):47-54. https://doi.org/10.12775/v10251-012-0063-1.