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  1. By: Anken, Ralf H
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 107
    Date: 1995
    Page Range: 75--76
    Publication Info: [London s.n
  2. By: Anken, Ralf H
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 111
    Date: 1999
    Page Range: 63--68
    Publication Info: [London s.n
  3. By: Anken, Ralf H - Bremen, Dirk
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 108
    Date: 1996
    Page Range: 11--15
    Publication Info: [London s.n
  4. By: Anken, Ralf H
    Type: Article
    In: Iheringia
    Volume: 81
    Date: 1996
    Page Range: 139--144
    Publication Info: Pôrto Alegre [Brazil], Museu Rio-Grandense de Ciências Naturais, Divisão de Ciências do Departamento de Ciência e Cultura, Secretaria de Estado dos Negócios da Educação e Cultura do Govêrno do Estado do Rio Grande do Sul, [1967-
  5. By: Anken, Ralf H
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 107
    Date: 1995
    Page Range: 237--240
    Publication Info: [London s.n