TOMCZYK, Łukasz. Ctibor Hatar: „Geragogika : vybrané kapitoly z teórie a metodiky edukácie seniorov”, Univerzita Konštantína Filozofa, Nitra 2014. Exlibris Social Gerontology Journal, [S. l.], v. 9, n. 1, p. 149–150, 2015. Disponível em: https://ojs.wsb.edu.pl/index.php/bgs/article/view/683. Acesso em: 11 may. 2026.