CHINESE JOURNAL OF APPLIED PROBABILITY AND STATISTICS     2012 28 (6):  561-571    ISSN: 1001-4268:  CN: 31-1256 / O1 Parameter Estimation for a Mixture of Generalized Exponential Distributions under Grouped and Right-Censored Samples Tian Yuzhu,Tian Maozai,Chen Ping School of Mathematics and Statistics,Tianshui Normal university, School of Statistics, Renmin University of China, Department of Mathematics of Southeast University Received null  Revised null  Online 2012-12-16 Reference   Corresponding author: Tian Yuzhu