Rudof  Czeppan (? -2003) was an ardent supporter of Jürgen Spanuth’s theory of Atlantis in the North Sea^(a). There have suggestions that Spanuth was a nazi ‘sympathiser’ and had access to Ahnenerbe files relating to their Atlantis research. This might partly explain why Czeppan,  a convicted neo-nazi, was so enthusiastic in his endorsement of Spanuth.

^(a) http://www.vho.org/VffG/2001/4/Czeppan374-381.html