R. Lingnau, L. D. Guimarães, and R. P. Bastos, “Vocalizations of Hyla werneri (Anura, Hylidae) in southern Brazil”, Phyllomedusa, vol. 3, no. 2, pp. 115–120, Dec. 2004, doi: 10.11606/issn.2316-9079.v3i2p115-120.