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  1. By: Gätke, Heinrich, - Rosenstock, Rudolph
    Publication info: Edinburgh, D. Douglas, 1895
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.82(43.51:22)  Birds  Germany  Helgoland  Migration
  2. By: Gätke, Heinrich, - Blasius, Rudolf,
    Edition: 2. verm. Aufl.
    Publication info: Braunschweig, Joh. Heinr. Meyer, 1900
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.82(43.51:22)  Birds  Germany  Helgoland  Migration