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://journals.rta.lv/index.php/SIE/article/view/1538.. Acesso em: 9 may. 2024.