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A national survey of managed honey bee 2010–11 winter colony losses in the USA: results from the Bee Informed Partnership

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(2010) Robert W Currie et al.   JOURNAL OF APICULTURAL RESEARCH

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(2010) Simon G Potts et al.   JOURNAL OF APICULTURAL RESEARCH

A survey of honey bee colony losses in the United States, fall 2008 to spring 2009

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A survey of managed honey bee colony losses in the USA, fall 2009 to winter 2010

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