Eichler, G. and Küpper, A. and Schau, V. and Fouchal, H. and Unger, H. (Editors) (2011). Proceedings of the 11th Intl. Conference on Innovative Internet Community Systems (I2CS 2011). Köllen Druck + Verlag GmbH.

Uzun, A. and Küpper, A. and Einsiedler, H.-J. (2011). Communicate Green - Energy Efficient Mobile Communication. Proceedings of the 1st Intl. Conference on Pervasive and Embedded Computing and Communication Systems. SciTePress, 302-305.

Uzun, A. and Räck, C. (2010). Using a Semantic Multidimensional Approach to create a Contextual Recommender System. Proceedings of LWA2010 - Lernen, Wissen & Adaptivität, 341-348.

Kessel, M. and Ruppel, P. and Gschwandtner, F. (2010). Waypoint Graph Creation for Indoor Location-based Services. Tagungsband des 7. GI KuVS Fachgesprächs zu Ortsbezogenen Anwendungen und Diensten. Logos Verlag Berlin GmbH.

Bareth, U. (2010). Algorithmic Optimizations for Energy-efficient Monitoring of Spatial Objects on Smartphones. Proceedings of the 40th Annual Conference of the Gesellschaft für Informatik e.V. (INFORMATIK 2010). Köllen Druck + Verlag GmbH, 577-582.

Bareth, U. and Küpper, A. (2010). Efficient Distribution and Topological Evaluation of Spatial Objects for proactive Location-based Services. 7. GI/ITG KuVS Fachgespräch "Ortsbezogene Anwendungen und Dienste". Logos Verlag Berlin GmbH, 47-53.

Bareth, U. and Küpper, A. and Ruppel, P. (2010). geoXmart - a Marketplace for Geofence-Based Mobile Services. Proceedings of the IEEE 34th Annual Computer Software and Applications Conference (COMPSAC 2010). IEEE, 101-106.

Küpper, A. and Treu, G. (2010). Next Generation Location-based Services: Merging Positioning and Web 2.0. Mobile Intelligence: When Computational Intelligence Meets Mobile Paradigm. John Wiley & Sons, 213-238.

Kessel, M. and Ruppel, P. and Gschwandtner, F. (2010). BIGML: A Location Model with Individual Waypoint Graphs for Indoor Location-based Services. PIK - Praxis in der Informationsverarbeitung und Kommunikation. De Gruyter Saur Verlag, 260-266.

Ruppel, P. and Gschwandtner, F. and Schindhelm, C. K. and Linnhoff-Popien, C. (2009). Indoor Navigation on Distributed Stationary Display Systems. Proceedings of the 33rd Annual IEEE Intl. Computer Software and Applications Conference (COMPSAC 2009)

Ruppel, P. and Gschwandtner, F. (2009). Spontaneous and Privacy-friendly Mobile Indoor Routing and Navigation. Proceedings of the 2nd Workshop on Services, Platforms, Innovations and Research for new Infrastructures in Telecommunications (SPIRIT 2009)

Gschwandtner, F. and Ruppel, P. (2008). Automatic Calibration of Large-scale WiFi-Positioning Systems. IEEE Global Communications Conference - Design & Developers Forum

Ruppel, P. and Klein, C. and Linnhoff-Popien, C. (2008). Indooria – A Platform for Proactive Indoor Location-based Services. IEEE Global Communications Conference - Design & Developers Forum

Deblauwe, N. and Ruppel, P. and van Biesen, L. (2008). Modelling the GPS-receiver: a look from the LBS-side. Proceedings of the European Navigation Conference (ENC-GNSS)

Kjärgaard, M. B. and Treu, G. and Ruppel, P. and Küpper, A. (2008). Efficient Indoor Proximity and Separation Detection for Location Fingerprinting. Proceedings of the 1st Intl. Conference on MOBILe Wireless MiddleWARE, Operating Systems, and Applications (Mobilware 2008)