PÉREZ, Liseth, et al. “Distribution, Diversity and Ecology of Modern Freshwater Ostracodes (Crustacea), and Hydrochemical Characteristics of Lago Petén Itzá, Guatemala”. Journal of Limnology, vol. 69, no. 1, Feb. 2010, pp. 146-59, doi:10.4081/jlimnol.2010.146.