RAVBAR, N. The Earliest Chinese Karstologist Xu Xiake. Acta Carsologica, Ljubljana, Slovenija, v. 32, n. 1, 2016. DOI: 10.3986/ac.v32i1.376. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/376. Acesso em: 24 dec. 2024.