Andreas Köpke, Holger Karl and Adam Wolisz, "Consensus in WSN – Identifying critical protocol mechanisms". In GI/ITG Fachgespräch Drahtlose Sensornetze Karlsruhe, 2004

Vlado Handziski, Holger Karl, Andreas Köpke and Adam Wolisz, "A common wireless sensor network architecture?". In Proc. 1.\ GI/ITG Fachgespräch ``Sensornetze'' (Technical Report TKN-03-012 of the Telecommunications Networks Group, Technische Universität Berlin , pp. 10–17 Berlin, Germany, 2003

Witold Drytkiewicz, Steffen Sroka, Vlado Handziski, Andreas Köpke and Holger Karl, "A Mobility Framework for OMNeT++". 3rd International OMNeT++ Workshop, at Budapest University of Technology and Economics, Department of Telecommunications Budapest, Hungary , 2003

Andreas Köpke, Vlado Handziski and Holger Karl, "Making Sensor Networks Intelligent". In Proc. 7th Wireless World Research Forum (WWRF) Eindhoven, Nertherlands, dec 2002

Dániel Hollós and Holger Karl, "A Clustering Framework for Supporting Regional Decision Making in Large, Ad-hoc Ambient Networks". In Proc. 7th Wireless world Research Forum (WWRF) Eindhoven, Netherlands, 2002

Wei Xing, Holger Karl, Adam Wolisz and Harald Müller, "M-SCTP: Design and Prototypical Implementation of an End-to-End Mobility Concept". In Proc. 5th Intl. Workshop The Internet Challenge: Technology and Applications Berlin, Germany, 2002

Horst Miesmer, Henning Sanneck and Ana Aguiar and Holger Karl, "Concepts for a QoS-enabled, TCP/IP-oriented Link Layer in Beyond 3G Networks". In Proc. 6th Wireless World Research Forum (WWRF) London, GB, 2002

Dániel Hollós and Holger Karl, "A HiperLAN/2 simulation model in OMNeT++". In Proc. 2nd Intl. OMNeT++ Workshop , pp. 61–70 Berlin, Germany, jan 2002

Steffen Sroka and Holger Karl, "Using Akaroa with OMNeT++". Proc. 2nd Intl. OMNeT++ Workshop , pp. 43–50 Berlin, Germany, jan 2002

Holger Karl, "Relaying in Wireless Access Networks –- A Capacity and Energy-Efficiency Perspective". In Proc. Wireless World Research Forum Kickoff Meeting (WWRF) Munich, Germany, 2001