Patrick Royston, Remark AS R94: A Remark on Algorithm AS 181: The W-test for Normality, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 44, No. 4 (1995), pp. 547-551 ...

An exact test of significance of the hypothesis that the row and column effects are independent in an r × c contingency table can be executed in principle by generalizing Fisher's exact treatment of ...