1. An Introduction to Probability Theory and its Applications;Feller,1968
2. Probability and Measure;Billingsley,1979
3. Probability with Applications;Woodroofe,1975
4. Probability and Stochastic Processes for Engineers;Helstrom,1991
5. Least-squares estimations of location and scale parameters using order statistics;Lloyd;Biometrika,1952