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. Auckland, New Zealand, 3092(1), pp. 26–42. doi: 10.11646/zootaxa.3092.1.2.