TASSI, F., VASELLI, O., FERNANDEZ, E., DUARTE, E., MARTINEZ, M., DELGADO HUERTAS, A., & BERGAMASCHI, F. (2009). Morphological and geochemical features of crater lakes in Costa Rica: an overview. Journal of Limnology, 68(2), 193–205. https://doi.org/10.4081/jlimnol.2009.193