Litvinchuk, S.N. 2018. Testicular Anomalies in the Hybridogenetic Frog Pelophylax esculentus (Amphibia: Anura: Ranidae). KnE Life Sciences. 4, 3 (May 2018), 92–96. DOI:https://doi.org/10.18502/kls.v4i3.2109.