D.  Bickford, Lohman, D. J., Sodhi, N. S., Ng, P. K. L., Meier, R., Winker, K., Ingram, K. K., et Das, I., « Cryptic species as a window on diversity and conservation. », Trends in ecology & evolution, vol. 22, n? 3, p. 148-55, 2007.