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2. Character displacement in frogs;Blair;Amer. Zool.,1974
3. The vascularization of the respiratory surfaces in Bombina variegata;Czopkowa;Bull. Acad. Polon. Sci. Cl. II.,1955
4. The structure of thyroid gland in the Fire-bellied toad [Bombina bombin.(L.)] and the Yellow-bellied toad [Bombina variegat.(L.)];François-Krassowska;Bull. Acad. Polon. Sci. Cl. I.,1974