Mendes, E., Carvalho, P. E. M. and Ferreira Gomes, L. M. (2010) “Hydrogeologic Framework of the Gardunha Mountain: Northeast Area – Central Portugal”, Communications - Scientific letters of the University of Zilina, 12(3A), pp. 98-103. Available at: http://journals.uniza.sk/index.php/communications/article/view/953 (Accessed: 6April2026).