%A A. A. Pogorui %J Mathematics Subject Classification %T Estimation of Stationary Productivity of One-Phase System with a Storage %X In this paper we study a system consisting of an unreliable aggregate, a customer and an accumulator located between the aggregate and the customer. Operation of the system is modeled by random evolution in a semi-Markov medium. The stationary average productivity of the system is investigated as a function of the system parameters. %D 2000 %P 1-8 %L zu213315