TY - JOUR A1 - Block, H.W. A1 - Li, Y. A1 - Savtis, T.H. T1 - Initial and final behavior of failure rate functions for mixtures and functions Y1 - 2003 DO - 10.1239/jap/1059060898 JF - Journal of Applied Probability VL - 40 IS - 3 SP - 721 EP - -740 ER -