BOUROȘ, George. 2015. “Assessing Small Hydropower Plants Impact on Eurasian Otter. Case Study: The Buzău River, Romania”. Studia Universitatis Babeș-Bolyai Biologia 60 (1):119-35. https://studia.reviste.ubbcluj.ro/index.php/subbbiologia/article/view/4574.