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1by Freeman, H. C., Uthe, J. F., Silk, P. J.Get access
Published in Environmental Monitoring and Assessment (1984)
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2by Ryall, K.L., Silk, P., Thurston, G.S., Scarr, T.A., de Groot, P.Get access
Published in The Canadian Entomologist (2013)
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Article in Journal/Newspaper