SHAW, T. R. Early Electric Lighting in Caves - Postojnska jama, Slovenia, 1883-1929. Acta Carsologica, Ljubljana, Slovenija, v. 32, n. 1, 2016. DOI: 10.3986/ac.v32i1.373. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/373. Acesso em: 24 apr. 2024.