Rakotoarison, A., Crottini, A., Müller, J., Rödel, M.-O., Glaw, F. & Vences, M. (2015) Revision and phylogeny of narrow-mouthed treefrogs (Cophyla) from northern Madagascar: integration of molecular, osteological, and bioacoustic data reveals three new species. Zootaxa, 3937 (1), 61–89.