1. B.K. Asare and F.G. Foster, Conditional response time in the M/G/l processor-sharing systems, J. Appl. Prob. 20, 4 (1983) 910?915.
2. G.P. Basharin and A.L. Tolmachev, Queueing networks theory and its applications to an analysis of computer systems (in Russian), In: Itogi Nauki i Tekhniki, Ser. Teoriya veroyatn, V. 21 (VINITI, Moscow, 1983) 3?119.
3. Yu.K. Belyayev, B.V. Gnedenko and I.A. Ushakov, Mathematical problems of queuing and reliability theory, Engrg. Cybernetics 21, 6 (1983) 62?69 (Engl. trans. of Russian journ. Izv. Akad. Nauk SSSR, Tekh. Kibernet. (1983) No. 6, 3?12).
4. A.A. Borovkov,Asymptotic Methods in Queueing Theory, (Wiley, New York, 1984).
5. O.J. Boxma, M/G/? tandem queues, Stoch. Processes and their Applications 18, 1 (1984) 153?164.