WELLMER, F.-. W.; DROBE, M. A quick estimation of the economics of exploration projects - rules of thumb for mine capacity revisited - the input for estimating capital and operating costs. Boletín Geológico y Minero, [S. l.], v. 130, n. 1, p. 7–26, 2019. DOI: 10.21701/bolgeomin.130.1.001. Disponível em: https://bgm.revistas.csic.es/index.php/bgm/article/view/209. Acesso em: 23 feb. 2025.