1. Dimensioning of ACD systems, I – IV;Brandt A.,1994
2. Traffic Engineering with an ACD;Cravis;TE&M,1990
3. Improving Efficiency of PBX-based Call Centers: Combining Inbound and Outbound Agents with Automatic Call Sharing;Dumas,1995
4. Inbound Call Centers: Design, Implementation and Management;Gable,1993
5. Call Center Solutions;Harvey;AT&T Technical Joumal,1991