Wu, M. and Gao, L. 2010.

A review of the genus Pupopsis Gredler, 1898 (Gastropoda: Stylommatophora: Enidae), with the descriptions of eight new species from China

. Zootaxa. 2725, 1 (Dec. 2010), 1–27. DOI:https://doi.org/10.11646/zootaxa.2725.1.1.