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. 1987 Feb 1;92(1):35–52. doi: 10.6028/jres.092.004

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The Journal of Research of the National Bureau of Standards is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.

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Rotational constant $B_{v_{2}}$ for rotation about intermediate axis - solid circles via rigid bonds, open circles with bond stretch. The dashed curve is by eq (23), the solid curve via Benedict.