P. Chandrasekhar et R. Natarajan, CONFIDENCE-LIMITS FOR STEADY-STATE AVAILABILITY OF A PARALLEL SYSTEM, Microelectronics and reliability, 34(11), 1994, pp. 1847-1851
100 (1 - alpha)% confidence limits for the steady state availability o
f a parallel system, when the failure rate of an operable unit is a co
nstant and the repair time of a failed unit is an Erlangian distributi
on are obtained.