Extreme Points of the Class of Discrete Decreasing Failure Rate Life Distributions. - Naftali A. Langberg; Ramón V. León; James Lynch 001; Frank Proschan (Math. Oper. Res., 1980)

Preservation of Life Distribution Classes Under Reliability Operations. - Ramón V. León; James Lynch 001 (Math. Oper. Res., 1983)