Páll-Gergely, Barna. “Systematic Revision of the Plectopylinae (Gastropoda, Pulmonata, Plectopylidae)”. European Journal of Taxonomy, no. 455 (August 16, 2018). Accessed April 24, 2026. https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/586.