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Special Publication 1: Proceedings of the Fourth International Swan Symposium 2001 || Annual Variation in the Proportion of Whooper Swans and Bewick's Swans Breeding in Northern European Russia
Yuri M. Shchadilov, Eileen C. Rees, Anna V. Belousova and John M. BowlerVolume:
25
Year:
2002
Language:
english
Journal:
Waterbirds: The International Journal of Waterbird Biology
DOI:
10.2307/1522338
File:
PDF, 1.58 MB
english, 2002