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A REDUCTION FORMULA FOR NORMAL MULTIVARIATE INTEGRALS Get access R. L. PLACKETT R. L. PLACKETT University of Liverpool Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 41, Issue 3-4, 3 December 1954, Pages 351–360, https://doi.org/10.1093/biomet/41.3-4.351 Published: 03 December 1954
R. L. Plackett (1954) studied this question.