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Summary
DescriptionVipera walser range.png
English: Vipera walser range
Date
Source
Ghielmi, Samuele; Menegon, Michele; Marsden, Stuart J.; Laddaga, Lorenzo; Ursenbacher, Sylvain (2016). "A new vertebrate for Europe: the discovery of a range-restricted relict viper in the western Italian Alps". Journal of Zoological Systematics and Evolutionary Research. 54 (3): 161–173. doi:10.1111/jzs.12138. S2CID 88740081.
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