[1] Eindhoven University of Technology, Dept. of Computing Science, P.O. Box 513, 5600 MB Eindhoven, Netherlands
[2] CMS Project, CERN/Europ. Org. for Particle Phys., Geneva, Switzerland
[3] Europ. Lab. for Particle Physics, Division EP/CMC, CERN, 1211 Geneva 23, Switzerland
[4] Ericsson Telecomunicatie B.V., Rijen, Netherlands
[5] Division ETM/R, Ericssonstraat 2, 5121 ML Rijen, Netherlands