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1. THE DEVELOPMENT OF Rana arvalis (AMPHIBIA, RANIDAE), WITH ATTENTION TO THE SKIN TEXTURE AND TIMING OF METAMORPHOSIS EVENTS
2. Ultrastructural study of the mucocytes in the dermal glands of Bufotes pewzowi (Amphibia, Bufonidae), with some reflections on the polymorphism of the secretory epithelium
3. Diversity, Phylogenetic Relationships and Distribution of Marsh Frogs (the Pelophylax ridibundus complex) from Kazakhstan and Northwest China
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