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The Wilcoxon Signed Rank Test for Paired Comparisons of Clustered Data
Rosner, Bernard, (2006)
Incorporation of Clustering Effects for the Wilcoxon Rank Sum Test: A Large-Sample Approach
Rosner, Bernard, (2003)
Power and Sample Size Estimation for the Clustered Wilcoxon Test
Rosner, Bernard, (2011)