MOLESZTAK, Aldona; BŁACHNIO, Aleksandra. Quality of life of German senior citizens. Journal of Education, Health and Sport, [S. l.], v. 7, n. 3, p. 767–781, 2017. Disponível em: https://apcz.umk.pl/JEHS/article/view/5067. Acesso em: 15 feb. 2025.