GREGO, Jozef. “Revision of the Stygobiont Gastropod Genera Plagigeyeria Tomlin, 1930 and Travunijana Grego & Glöer, 2019 (Mollusca; Gastropoda; Moitessieriidae and Hydrobiidae) in Hercegovina and Adjacent Regions”. European Journal of Taxonomy, no. 691 (July 26, 2020). Accessed May 14, 2024. https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1041.