Bussing, W. A. “A New Fish, <i>Brachyrhaphis roseni</i≫ (Poeciliidae) from Costa Rica and Panama”. Revista De Biología Tropical, vol. 36, no. 1, June 1988, pp. 81–87, https://revistas.ucr.ac.cr/index.php/rbt/article/view/23640.