Die Nahrung unserer Eulen
Article
1863
Journal für Ornithologie
11
217--219
BioStor
German
Berlin, Friedländer,
BioStor: https://biostor.org/reference/142171 DOI: https://doi.org/10.1007/bf02004902
Public domain. The BHL considers that this work is no longer under copyright protection.
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