RÓŻAŃSKI, Tomasz. EDUCATIONAL ACTIVITY OF OLDER PEOPLE IN POLAND – SELECTED ISSUES. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 4, p. 122–131, 2016. DOI: 10.17770/sie2016vol4.1538. Disponível em: https://archive-journals.rtu.lv/sie/article/view/1382.. Acesso em: 11 mar. 2026.