T. Valente y C. Gomes, «The role of two acidophilic algae as ecological indicators of acid mine drainage sites», JIGE, vol. 33, n.º 2, pp. 283–294, ene. 2007, Accedido: jul. 26, 2026. Disponible en: https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0707210283A