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This is a comment to doi:10.1007/s00362-006-0029-0.
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Li, W., Yang, H. & Wu, J. Some comments on: Özkale, M.R., Kaciranlar, K. (2008): Comparisons of the r–k class estimator to the ordinary least squares estimator under the Pitman’s closeness criterion. Statistical Papers, 49:503–512. Stat Papers 53, 497–503 (2012). https://doi.org/10.1007/s00362-010-0361-2
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DOI: https://doi.org/10.1007/s00362-010-0361-2