Ansell, P. S.; Glazebrook, K. D.; Niño-Mora, J.; … - In: Mathematical Methods of Operations Research 57 (2003) 1, pp. 21-39
Multi-class service systems are of increasing importance in the practical modelling world but present a significant challenge for analysis. Most results to date concerning the optimal dynamic control of such systems have assumed holding cost rates to be linear in the number of customers present....