Vassilieva, Anna B., Svetlana S. Gogoleva, and Nikolay A. Jr. Poyarkov. 2016. “Larval Morphology and Complex Vocal Repertoire of Rhacophorus helenae (Anura: Rhacophoridae), a Rare Flying Frog from Vietnam”. Zootaxa 4127 (3). Auckland, New Zealand:515–536. https://doi.org/10.11646/zootaxa.4127.3.6.