Customer relations management: service operations: using simulation to approximate subgradients of convex performance measures in service systems. - Júlíus Atlason; Marina A. Epelman; Shane G. Henderson (WSC, 2003)

Call Center Staffing with Simulation and Cutting Plane Methods. - Júlíus Atlason; Marina A. Epelman; Shane G. Henderson (Ann. Oper. Res., 2004)

Optimizing Call Center Staffing Using Simulation and Analytic Center Cutting-Plane Methods. - Júlíus Atlason; Marina A. Epelman; Shane G. Henderson (Manag. Sci., 2008)