Herfsttrek en biometrie van de IJsgors Calcarius lapponicus te Castricum

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Journal	Limosa
Rights	CC BY-NC 4.0 NL ("Naamsvermelding-NietCommercieel")
Organisation	Nederlandse Ornithologische Unie
Citation APA Style AAA Style APA Style Cell Style Chicago Style Harvard Style IEEE Style MLA Style Nature Style Vancouver Style American-Institute-of-Physics Style Council-of-Science-Editors Style BibTex Format Endnote Format RIS Format CSL Format DOIs only Format	H. Schekkerman. (1989). Herfsttrek en biometrie van de IJsgors Calcarius lapponicus te Castricum. Limosa, 62(1), 29–34.

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