Bruggen, A. C. van. (1975). New data on
Cylindrella cumingiana Pfeiffer, 1845, type species of the genus
Diaphera Albers, 1850 (Mollusca, Gastropoda, Pulmonata, Streptaxidae).
Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C,. 78(2): 167–171.