Kozlov, Mikhail, Alexandr Lvovsky, and Kauri Mikkola. “Abundance of Day-Flying Lepidoptera Along an Air Pollution Gradient in the Northern Boreal Forest Zone¹”. Entomologica Fennica 7, no. 3 (September 1, 1996): 137–144. Accessed April 26, 2024. https://journal.fi/entomolfennica/article/view/83902.