1. Bennett, B. M.: Tests of hypotheses concerning matched samples. J. R. statist. Soc. 29 B 468–474 1967.
2. Bowker, A. H.: A test for symmetry in contingency tables. J. Amer. statist. Ass.43, 572–574, 1948.
3. Finney, D. J.: Symmetry in contingency tables, in: Studi in onore di Corrado Gini, Institute of Statistics, Rome, vol. I, pps. 1–18, 1959.
4. McNemar, Q.: Note on the sampling error of the difference between correlated proportions or percentages. Psychometrika,12, 153–157, 1947.
5. Rao, C. R.: Linear Statistical Inference and Its Applications. Wiley. 1965.