Wüchner, Patrick, Sztrik, János, Meer, Hermann de (2009) Investigating the mean response time in finite-source retrial queues using the algorithm by Gaver, Jacobs, and Latouche Annales Mathematicae et Informaticae. 36. pp. 143-160. ISSN 1787-5021 (Print), 1787-6117 (Online)