Michels, A. (1998) “Effects of sewage water on diatoms (Bacillariophyceae) and water quality in two tropical streams in Costa Rica”, Revista de Biología Tropical, 46(S6), pp. 153–175. Available at: https://revistas.ucr.ac.cr/index.php/rbt/article/view/29654 (Accessed: 19December2024).