T. Begin and A. Brandwajn, A Note on the Accuracy of Several Existing Approximations for M/Ph/m Queues, 2013 IEEE 37th Annual Computer Software and Applications Conference Workshops, 2013.
DOI : 10.1109/COMPSACW.2013.109

URL : https://hal.archives-ouvertes.fr/hal-00864323

D. A. Bini, G. Latouche, and B. Meini, Numerical Methods for Structured Markov Chains, 2005.
DOI : 10.1093/acprof:oso/9780198527688.001.0001

G. Bolch, S. Greiner, H. Meer, and K. Trivedi, Queueing Networks and Markov Chains, 2005.
DOI : 10.1002/0471791571

A. Brandwajn and T. Begin, Preliminary Results on a Simple Approach to G/G/c-Like Queues, Proceedings of Analytical and Stochastic Modeling Techniques and Applications (ASMTA), pp.159-173, 2009.
DOI : 10.1081/STM-120014221

URL : https://hal.archives-ouvertes.fr/hal-01295230

A. Bra12a-]-brandwajn and T. Begin, An approximate solution for Ph/Ph/1 and Ph/Ph/1/N queues, Proceedings of the third joint WOSP/SIPEW international conference on Performance Engineering, ICPE '12, 2012.
DOI : 10.1145/2188286.2188297

A. Brandwajn and T. Begin, A Recurrent Solution of Ph, Journal of Applied Probability, vol.49, issue.1, pp.84-99, 2012.
URL : https://hal.archives-ouvertes.fr/hal-00746840

N. Gans, G. Koole, and A. Mandelbaum, Telephone call centers: tutorial, review, and research prospects. Manufacturing and Service Operations Management, pp.79-141, 2003.
DOI : 10.1287/msom.

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

V. Gupta, M. Harchol-balter, J. Dai, and B. Zwart, On the inapproximability of M/G/K: why??two??moments of job size distribution are??not??enough, Queueing Systems, vol.33, issue.2, pp.5-48, 2010.
DOI : 10.1007/s11134-009-9133-x

A. Horváth and M. Telek, PhFit: A General Phase-Type Fitting Tool, Proceedings of Computer Performance Evaluation: Modelling Techniques and Tools (TOOLS, pp.82-91, 2002.
DOI : 10.1007/3-540-46029-2_5

G. Latouche, R. , and V. , A logarithmic reduction algorithm for quasi-birth-death processes, Journal of Applied Probability, vol.18, issue.03, pp.650-674, 1993.
DOI : 10.1080/15326348908807129

G. Latouche, R. , and V. , Introduction to Matrix Analytic Methods in Stochastic Modeling, 1999.
DOI : 10.1137/1.9780898719734

V. Ramaswami and D. M. Lucantoni, Algorithms for the multi-server queue with phase type service, Stochastic Models, pp.393-417, 1985.

L. P. Seelen, An algorithm for Ph/Ph/c queues, European Journal of Operational Research, vol.23, issue.1, pp.118-127, 1986.
DOI : 10.1016/0377-2217(86)90222-5

Y. Takahashi and Y. Takami, A Numerical Method for the Steady-State Probabilities of a GI/G/s Queueing system in a General Class, Journal of the Operations Research Society of Japan, vol.19, pp.147-157, 1976.