Bibliography

Trujillo, T., J. Gutiérrez-Rodríguez, J. W. Arntzen, and Í. Martínez-Solano. 2017. Morphological and molecular data to describe a hybrid population of the Common toad (Bufo bufo) and the Spined toad (Bufo spinosus) in western France. Contributions to Zoology. Amsterdam 86: 1–10.