Monge-Nájera, J., González, M. I., Rivas Rossi, M. and Méndez-Estrada, V. H. (2002) “Twenty years of lichen cover change in a tropical habitat (Costa Rica) and its relation with air pollution”, Revista de Biología Tropical, 50(1), pp. 309–319. Available at: https://revistas.ucr.ac.cr/index.php/rbt/article/view/16288 (Accessed: 25November2024).