TY - JOUR A1 - Brandt, Andreas A1 - Brandt, Manfred T1 - On a two-queue priority system with impatience and its application to a call center T2 - Methodol. Comput. Appl. Probab. Y1 - 1999 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/2906 VL - 1 SP - 191 EP - 210 ER -