Gilbert Held TR/Tracer for Windows. 175-180 1997 7 Int. Journal of Network Management 3 http://dx.doi.org/10.1002/(SICI)1099-1190(199705/06)7:3<175::AID-NEM221>3.0.CO;2-B db/journals/ijnm/ijnm7.html#Held97c