ZUPAN HAJNA, N. UNESCO Proclaims the International Day of Caves and Karst: A Milestone in Global Recognition . Acta Carsologica, Ljubljana, Slovenija, v. 54, n. 2, 2025. DOI: 10.3986/ac.v54i2.14935. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/14935. Acesso em: 5 jan. 2026.