[1] Ng H K T,Chan P S,Balakrishnan N. Estimation of parameters from progressively censored data using EM algorithm [J]. Computational Statistics and Data Analysis,2002,39: 371-386.
[2] Lin Chientai,Balakrishnan N. Asymptotic properties of maximum likelihood estimators based on progressive Type-Ⅱ censoring [J]. Metrika,2010-03-25. Online First.
[3] Aggarwala R. Progressively interval censoring: Some mathematical results with application to inference[J]. Communications in Statistics-Theory and Methods,2001,30: 1 921-1 935.
[4] Chen D G,Lio Y L. Parameter estimations for generalized exponential distribution under progressive type-I interval censoring [J]. Computational Statistics and Data Analysis,2010,54: 1 581-1 591.
[5] Louis T A. Finding the observed information matrix when using the EM algorithm[J]. R Stat Soc Series B,1982,44: 226- 233.
[6] Cramér H. Mathematical Methods of Statistics[M]. Princeton: Princeton University Press, 1946.