Relationship between Population of Wintering Whopper Swan (Cygnus cygnus) and Bridge Spacing in the Lower Nakdong River, Korea (낙동강하류 교량간격에 따른 큰고니(Cygnus cygnus) 월동개체수 차이 연구)
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- Korean Journal of Environment and Ecology
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- v.34 no.3
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- pp.191-197
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- 2020