Katrushenko, S. “External Morphological Anomalies of the Amphibians of the Kharkiv Region”. The Journal of V.N.Karazin Kharkiv National University. Series «Biology» 34, no. 34 (July 2, 2020): 78-88. Accessed April 29, 2024. https://periodicals.karazin.ua/biology/article/view/15933.