References
- Statistical Theory of Reliability and Life Testing Barlow, R.E.;Proschan, F.
- Biometrices v.46 Small-sample properties of odd ratio estimates under multiple matching in case-control studies Ejigou, A.
- An Introduction to Probability Theory and Mathematical Statistics Rohatgi, V.K.
- A First Course in Probability(5th ed.) Ross, S.
- Biometrics v.50 Small-sample study of an efficient estimator of the odds ratio under multiple matching Sasieni, P.