Sandotter – Zootier Lexikon https://www.zootier-lexikon.org/kriechtiere-reptilia/schlangen/vipern/hornotter-vipera-ammodytes
The IUCN Red List of Threatened Species 2009: e.T62255A12584303. http://www.iucnredlist.org
The IUCN Red List of Threatened Species 2009: e.T62255A12584303. http://www.iucnredlist.org
The IUCN Red List of Threatened Species 2010: e.T54555A11166846. http://www.iucnredlist.org
Literatur und Internetquellen EICHLER, D. (1997) FISH BASE GRZIMEK, B.
B. (1979) CITES TRADE DATA BASE DOLLINGER, P. (1983) in CITES IDENTIFICATION MANUAL
The IUCN Red List of Threatened Species 2008: e.T10548A3199623. http://www.iucnredlist.org