AU: F. TASSI, O. VASELLI, E. FERNANDEZ, E. DUARTE, M. MARTINEZ, A. DELGADO HUERTAS AND F. BERGAMASCHI TI: Morphological and geochemical features of crater lakes in Costa Rica: an overview SO: Journal of Limnology VL: 68 NO: 2 PG: 193-205 YR: 2009 DOI: 10.3274/JL09-68-2-04 US: http://dx.doi.org/10.3274/JL09-68-2-04