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var overland81 = "Overland, J.E., 1981. Marine climatology of the Bering Sea. In: <i>The Eastern Bering Sea Shelf: Oceanography and Resources</i>, Vol. 1, D.W. Hood and J.A. Calder (eds.), U.S. Government Printing Office, Washington D.C. (distributed by the University of Washington Press, Seattle), 15&ndash;30.";
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