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  1. By: Reissner, E. (Ernest), - Baer, Karl Ernst von, - Tartu Ülikool.
    Publication info: Dorpat, E.J. Karow, 1864
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  2. By: Baer, Karl Ernst von,
    Publication info: Lipsiae, Sumptibus L. Vossii, [1827]
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  3. By: Baer, Karl Ernst von,
    Publication info: St. Petersburg, Schmitzdorff, 1864-76
    Holding Institution: MBLWHOI Library
  4. By: Baer, Karl Ernst von,
    Publication info: [St. Petersbourg, s.n.], 2/14 October 1863
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Extinct Species
  5. By: Baer, Karl Ernst von, - Royal College of Physicians of London.
    Publication info: Königsberg, Bei den Gebrüdern Bornträger, 1828-1837
    Holding Institution: Royal College of Physicians, London
  6. By: Baer, Karl Ernst von, - Royal College of Physicians of London.
    Publication info: Königsberg, Bei den Gebrüdern Bornträger, 1828-1837
    Holding Institution: Royal College of Physicians, London
  7. By: Baer, Karl Ernst von,
    Publication info: Königsberg, Bei den Gebrüdern Bornträger, 1828-37
    Holding Institution: MBLWHOI Library
  8. By: Baer, Karl Ernst von,
    Publication info: St. Petersburg, 1840
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  9. By: Baer, Karl Ernst von,
    Publication info: Leipzig, F.C.W. Vogel, 1835
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
  1. By: Baer, Karl Ernst von,
    Type: Article
    In: Archiv für Naturgeschichte
    Volume: 5
    Issue: 1
    Date: 1839
    Page Range: 62--78
    Publication Info: Berlin, Nicolai, 1835-
  2. By: Baer, Karl Ernst von,
    Type: Article
    In: Archiv für Naturgeschichte
    Volume: 5
    Issue: 1
    Date: 1839
    Page Range: 160--170
    Publication Info: Berlin, Nicolai, 1835-
  3. By: Baer, Karl Ernst von,
    Type: Article
    In: Archiv für Naturgeschichte
    Volume: 3
    Issue: 1
    Date: 1837
    Page Range: 268--273
    Publication Info: Berlin, Nicolai, 1835-