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  1. By: Peck, James H - Frey, Wolfgang, - Frahm, Jan-Peter, - Fischer, E - Lobin, W
    Type: Article
    In: American fern journal
    Volume: 85
    Date: 1995
    Page Range: 67--68
    Publication Info: [Washington, etc.] American Fern Society
  2. By: Pfeifer, Manfred Alban - Andrick, Ulf Robert - Frey, Wolfgang, - Settele, Josef
    Type: Article
    In: Nota lepidopterologica
    Volume: 23
    Date: 2000
    Page Range: 147--172
    Publication Info: Bonn,