. A. Kryvoltsevych, A. Fedorova, D. Shabanov, and E. Pustovalova, “Anomalies in Marsh Frogs (Pelophylax ridibundus) and hybrid waterfrogs (P. esculentus) (Anura: Ranidae) from two ponds in the Kharkiv Region of Ukraine”, RandA, vol. 29, no. 1, pp. 204–209, Mar. 2022, doi: 10.17161/randa.v29i1.16446.