Protić, Ljiljana, and Nebojša Živić. “Water Bugs (Heteroptera) in the Catchment Area of River Sitnica (Serbia)”. Acta Entomologica Serbica 17, no. 1/2 (December 13, 2012): 29-37. Accessed May 3, 2024. https://aes.bio.bg.ac.rs/index.php/aes/article/view/62.