Rutanen, Ilpo, and Pertti Rassi. “<i>Coelambus polonicus</i> (Aube) and <i>C. parallelogrammus</I> (Ahrens) New to the Finnish Fauna (Coleoptera, Dytiscidae)”. Entomologica Fennica 2, no. 1 (January 1, 1991): 23. Accessed May 23, 2024. https://journal.fi/entomolfennica/article/view/83503.