Scientific articles \ Mathematics. Natural sciences \ Zoology \ Systematic zoology

Breeding of the whooper swan Cygnus cygnus in Novorzhev raion, Pskov oblast

Grigoriev E.V.

Journal: Русский орнитологический журнал @ornis

Article in issue: 1626 т.27, 2018.

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Short address: https://sciup.org/140227578

IDS: 140227578

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