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  1. By: Becking, Jan-Hendrik,
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 129
    Date: 2009
    Page Range: 18--48
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Becking, Jan-Hendrik,
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 126
    Date: 2006
    Page Range: 117--122
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Becking, Jan-Hendrik,
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 126
    Date: 2006
    Page Range: 123--136
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Becking, Jan-Hendrik,
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 114
    Date: 1994
    Page Range: 211--224
    Publication Info: London, British Ornithologists' Club, 1893-
  5. By: Becking, Jan-Hendrik,
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 108
    Date: 1988
    Page Range: 195--206
    Publication Info: London, British Ornithologists' Club, 1893-