WOLTER, Edyta. The idea of nature protection and the educational implications of the “Ochrona Przyrody” annual in the Second Polish Republic (1918-1939). Quarterly Journal Fides et Ratio, [S. l.], v. 44, n. 4, p. 220–234, 2020. DOI: 10.34766/fetr.v44i4.448. Disponível em: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/448. Acesso em: 1 sep. 2025.