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Hu, Junhua; Hu, Huijian; Jiang, Zhigang «The impacts of climate change on the wintering distribution of an endangered migratory bird». Oecologia, vol. 164, 2, 2010, pàg. 555–565 hidotdgfhf. Bibcode: 2010Oecol.164..555H. DOI: 10.1007/s00442-010-1732-z. PMID: 20677016.
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