Backeljau, Thierry, Marc De Meyer, Luc Janssens, Rudy Proesmans, and Wim Vader. “Ammonicera Rota in Norway (Mollusca, Gastropoda: Omalogyridae)”. Fauna norvegica 5 (December 31, 1984): 6-8. Accessed November 22, 2024. https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/6118.