1. On the Cheney and Sharma operator;Adell;J. Math. Anal. Appl.,1996
2. Negative moments of positive random variables;Chao;J. Amer. Statist. Soc.,1972
3. Chung, K.L., 1974. A Course in Probability Theory, 2nd Edition. Academic Press. New York.
4. The moment-generating function and negative integer moments;Cressie;The Amer. Statist.,1981
5. Garcia, N.L., Palacios, J.L., 2000. On mixing times for stratified walks on the d-cube. Preprint in Los Alamos Archives. http://arXiv.org/abs/physics/0003006.