1. Introduction to Maintenance Engineering, revised edition, p. 19, Nikkagiren (1976).
2. and , Reliability of some two-unit redundant systems, 6th National Symp. on Reliability and Quality Control, pp. 466–476 (1960).
3. Time to Failure and Availability of Paralleled Systems with Repair
4. Reliability analysis of a 2-dissimilar units redundant system with Erlang failure and general repair distributions, Microelectron and Reliab., 13, pp. 523–528 (1974).
5. Reliability Applications of a Bivariate Exponential Distribution