VETTER, GÜNTER SCHMITT AND MARTIN. SURVEY IN A WATER RESOURCE MANAGEMENT PROJECT OF AN UNDERGROUND RIVER IN INDONESIA. Boletim de Ciências Geodésicas, [S. l.], v. 12, n. 1, 2006. DOI: 10.5380/bcg.v12i1.5322. Disponível em: https://revistas.ufpr.br/bcg/article/view/5322. Acesso em: 8 jan. 2025.