Concentrator-Type Subscriber Station for a Service-Integrated Network with Decentralized Exchange. - J.-P. Behr; Ulrich Killat; Johann Krüger; D. Riekmann; M. Maisel (Kommunikation in Verteilten Systemen, 1981)

System Aspects and Realization of Wide-Band Switching in the Local Area. - Ulrich Killat; Johann Krüger (IEEE J. Sel. Areas Commun., 1985)

The Barefoot Teacher on the Telematic Highway - Serving Rural Communities in Kwa Zulu Natal. - Charl Fregona; Maureen Harris; Johann Krüger (WebNet, 1999)