International Teletraffic Congress Copenhagen, Denmark, Iversen, V. B., & Jensen, A. (1991). Teletraffic and Datatraffic: In a Period of Change. Proceedings of the 13th International Teletraffic Congress Copenhagen, Denmark, June 19-26, 1991. North-Holland.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Teletraffic Congress Copenhagen, Denmark, V. B. Iversen, και Arne Jensen. Teletraffic and Datatraffic: In a Period of Change. Proceedings of the 13th International Teletraffic Congress Copenhagen, Denmark, June 19-26, 1991. Amsterdam: North-Holland, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)International Teletraffic Congress Copenhagen, Denmark, et al. Teletraffic and Datatraffic: In a Period of Change. Proceedings of the 13th International Teletraffic Congress Copenhagen, Denmark, June 19-26, 1991. North-Holland, 1991.
