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  1. By: Haffer, Jürgen
    Publication info: New York, N.Y, American Museum of Natural History, [1967]
    Holding Institution: American Museum of Natural History Library
  2. By: Haffer, Jürgen
    Publication info: 1967
    Holding Institution: American Museum of Natural History Library
  1. By: Haffer, Jürgen
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 123A
    Date: 2003
    Page Range: 7--25
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Haffer, Jürgen
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 29
    Date: 1978
    Page Range: 38--78
    Publication Info: Bonn, Das Forschungsinstitut,
  3. By: Haffer, Jürgen
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 45
    Date: 1994
    Page Range: 113--123
    Publication Info: Bonn, Das Forschungsinstitut,
  4. By: Haffer, Jürgen
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 122A
    Date: 1992
    Page Range: 107--158
    Publication Info: London, British Ornithologists' Club, 1893-
  5. By: Haffer, Jürgen
    Type: Article
    In: Instituto Internacional de Ecologia
    Date: 2008-11-01
    Publication Info: Instituto Internacional de Ecologia 2008-11-01
  6. By: Haffer, Jürgen
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 112
    Date: 1992
    Page Range: 250--264
    Publication Info: London, British Ornithologists' Club, 1893-
  7. By: Haffer, Jürgen
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 25
    Date: 1974
    Page Range: 87--117
    Publication Info: Bonn, Das Forschungsinstitut,
  8. By: Haffer, Jürgen
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 28
    Date: 1977
    Page Range: 48--76
    Publication Info: Bonn, Das Forschungsinstitut,