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The interpretation of negative components of variance J. A. NELDER J. A. NELDER National Vegetable Research Station Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 41, Issue 3-4, 3 December 1954, Pages 544–548, https://doi.org/10.1093/biomet/41.3-4.544 Published: 03 December 1954
J. A. Nelder (Fri,) studied this question.