%A I.J.B.F. Adan %A G.J. van Houtum %A J. Wessels %A W.H.M. Zijm %J Kwantitatieve Methoden %T On the precedence relation method for deriving flexible bound models for queueing systems %N 51 %P 27-36 %V 17 %D 1996 %L iiasa4640