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. 1991 Sep-Oct;96(5):565–575. doi: 10.6028/jres.096.033

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The Journal of Research of the National Institute of Standards and Technology 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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Barium titanate mix 1 (a) predicted and observed ℜ [S₂₁] (b) predicted and observed ℜ [S₂₁].