1. and , Statistical Theory of Reliability and Life Testing, Hold Rinehart and Winston, New York, 1975.
2. Some Criteria for Aging
3. Aspects of positive ageing
4. , , and , “Aspects of Positive Ageing II,” to be published.
5. , and , “On Life Distributions Having Monotone Residual Variance,” Probability in Engineering and Information Sciences, to be published.