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SKOCZYLAS R.,
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Influence of temperature on gastric digestion in the grass snake Natrix natrix L.
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Ancestry of the grass snake (Natrix natrix): paleontological evidence
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TERHIVUO J.,
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Relative regional abundance and colour morphs of the adder (Vipera berus L.), grass snake (Natrix natrix L.), slow worm (Anguis fragilis L.) and common toad (Bufo bufo L.) in Finland.
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Biometric analysis of incipient speciation in the ringed snake, Natrix natrix (L.)
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