GALEGO FERNANDES, P.; BAHIR, M.; MENDONÇA, J.; CARREIRA, P.; FAKIR, Y.; SILVA, M. O. Anthropogenic features in the Sines (Portugal) and Essaouira (Morocco) coastal aquifers: a comparative study of their hydrochemical evolution by a Principal Component Analysis. Estudios Geológicos, [S. l.], v. 61, n. 3-6, p. 207–219, 2005. DOI: 10.3989/egeol.05613-663. Disponível em: https://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/63. Acesso em: 26 sep. 2022.