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Journal Article THE DISTRIBUTION OF THE INDEX IN A NORMAL BIVARIATE POPULATION Get access E. C. FIELLER, B.A. E. C. FIELLER, B.A. Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 24, Issue 3-4, November 1932, Pages 428–440, https://doi.org/10.1093/biomet/24.3-4.428 Published: 01 November 1932
E. C. Fieller (1932) studied this question.