Letteval, Ulf. “On the Hydracarina of Greenland With a Description of Lebertia (Pseudolebertia) Groenlandica N. Sp”. Meddelelser om Grønland 170, no. 1 (July 25, 1965): 1–40. Accessed December 28, 2025. https://tidsskrift.dk/meddrgroenland/article/view/159705.