Guerra, C., Baldo, D., Rosset, S., Borteiro, C. and Kolenc, F. 2011. Advertisement and release calls in Neotropical toads of the Rhinella granulosa group and evidence of natural hybridization between R. bergi and R. major (Anura: Bufonidae). Zootaxa. 3092, 1 (Nov. 2011), 26–42. DOI:https://doi.org/10.11646/zootaxa.3092.1.2.