Zur genaueren Kenntniss des Uralkauzes aus Ostpreussen
Article
1884
Journal für Ornithologie
32
Series: 4
267--271
BioStor
German
Berlin, Friedländer,
BioStor: https://biostor.org/reference/142303 DOI: https://doi.org/10.1007/bf02009936
Public domain. The BHL considers that this work is no longer under copyright protection.
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