Hansen, Michael, and Heikki Hämäläinen. “<i>Hydraena excisa</I> Ganglbauer (Coleoptera, Hydraenidae) New to Finland”. Entomologica Fennica 5, no. 1 (January 1, 1994): 53–55. Accessed May 13, 2024. https://journal.fi/entomolfennica/article/view/83792.