1. P. Franken, D. Konig, V. Arndt and V. Schmidt,Queues and Point Processes (Akademie-Verlag, Berlin and J. Wiley and Sons, Chichester, 1981).
2. P. Franken, D. Konig and V. Schmidt, On time dependent and stationary queue length characteristics, Elektron. Informationsverarb. Kybernetik. 16 (1980) 463.
3. J. Grandell,Doubly Stochastic Poisson Processes, Lecture Notes in Mathematics 529 (Springer-Verlag, Berlin, 1976).
4. J.M. Harrison and A. Lemoine, Limit theorems for periodic queues, J. Appl. Prob. 14 (1977) 566.
5. O. Kallenberg,Random Measures (Akademie-Verlag, Berlin and Academic Press, London, 1983).