Teletraffic and datatraffic in a period of change : ITC-13 : proceedings of the thirteenth International teletraffic congress, Copenhagen, Denmark, June 19-26, 1991 / ed. by Arne Jensen and V.B. Iversen
"Teletraffic and datatraffic in a period of change : ITC-13 : proceedings of the thirteenth International teletraffic congress, Copenhagen, Denmark, June 19-26, 1991 / ed. by Arne Jensen and V.B. Iversen"
"Teletraffic and datatraffic in a period of change : ITC-13 : proceedings of the thirteenth International teletraffic congress, Copenhagen, Denmark, June 19-26, 1991"