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SYSTEM RELIABILITY -- MEASURES, PREDICTION, OPTIMIZATION, ESTIMATION - Mean residual life and its association with failure rate
Ghai, G., (1999)
LIFETIME: PROBABILISTIC MODELS AND STATISTICAL INFERENCE - A new explanation of decreasing failure rate of a mixture of exponentials
Mi, J., (1998)
Confidence interval for the mean of the exponential distribution, based on grouped data
Chen, Z., (1996)