Maintenance
All wikis at Biowikifarm are in read-only mode due to the restoration after a severe cyberattack in October 2023.
After 1 year being shut down the Biowikifarm is online again.
You see the latest restored version from 18th October 2023.
Arnold & Ovenden 2004
Aus Offene Naturführer
Arnold, E. N. & Ovenden, D. W. 2005: A field guide to the reptiles and amphibians of Britain and Europe. 2. Auflage. Collins, London, S. 1-288 (Illustriert von Denys W. Ovenden mit 49 Tafeln).
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