1.   Asymptotic normality of the kernel estimate under dependence conditions:  Application to hazard rate。
     作者 G. G. Roussas，《 Journal of Statistical Planning and Inference》 25 (1990), 81-104.
2. Hazard rate estimation under dependence condition.
             G. G. Roussas          Journal of statistical planning and inference      22 (1989), 81-93.
3. Kernal estimation of the survival function and hazard rate under week dependence.
             Alan Julian Lzenman等 Journal of statistical planning and inference   24(1990), 233-247.