Hans-Werner Herrmann, Ulrich Joger, Göran Nilson: Phylogeny and systematics of viperine snakes. III: resurrection of the genus Macrovipera (Reuss, 1927) as suggested by biochemical evidence. In: Amphibia-Reptilia. Bd. 13, Nr. 4, 1992, ISSN0173-5373, S. 375–392, doi:10.1163/156853892X00076.
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Zbigniew Szyndlar: Two new extinct species of the Genera Malpolon and Vipera (Reptilia; Serpentes) from the Pliocene of Layna (Spain). In: Acta Zoologica Cracoviensia. Bd. 31, Nr. 27, 1988, ISSN0065-1710, S. 687–706.
Hans-Werner Herrmann, Ulrich Joger, Göran Nilson: Phylogeny and systematics of viperine snakes. III: resurrection of the genus Macrovipera (Reuss, 1927) as suggested by biochemical evidence. In: Amphibia-Reptilia. Bd. 13, Nr. 4, 1992, ISSN0173-5373, S. 375–392, doi:10.1163/156853892X00076.