1. M. Armony, C. Maglaras, Customer contact centers with multiple service channels, preprint.
2. R. Atar, A. Mandelbaum, M. Reiman, Scheduling a multi-class queue with many exponential servers: asymptotic optimality in heavy-traffic, Ann. Appl. Probab., to appear.
3. Dynamic scheduling of a system with two parallel servers in heavy traffic with complete resource pooling;Bell;Ann. Appl. Probab.,2001
4. Ordinary Differential Equations;Birkhoff,1989
5. Designing a call center with impatient customers;Garnett;Manuf. Serv. Oper. Management,2002