J. Palacio-Núñez, J. R. Verdú, C. Numa, D. Jiménez-García, G. Olmos Oropeza, and E. Galante, “Freshwater fish’s spatial patterns in isolated water springs in North-eastern Mexico”, Rev. Biol. Trop., vol. 58, no. 1, pp. 413–, Mar. 2010.