Thomopoulos, Stelios CA, Philippopoulos, Panos I, Argyreas, Nikos, Krukowski, Artur, Makri, Effie, Soulos, George and Dessiniotis, Christos, LIAISON IP location based services: taxi on demand, In Proceedings of the 15 IST Mobile Summit 2006, Mykonos, 2006.
Philippopoulos, Panos I, Thomopoulos, Stelios CA, Argyreas, Nikos D and Krukowski, Artur, LIAISON ToD: an intelligent location-based taxi hailing system, In 1st LIAISON-ISHTAR Workshop on LBS Trends and R&D, Athens, Greece, 2006.
Krukowski, Artur and Thomopoulos, Stelios CA, Improvement of GPS positioning availability using ground elevation information, In 15th IST mobile and wireless summit, (Pages: 4–8), 2006.
Krukowski, Artur and Thomopoulos, Stelios CA, Enhanced positioning performance using GIS-assisted satellite positioning, In Fifth International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2006), (Pages: 611–614), 2006.
Philippopoulos, Panos I, Soulos, Giorgos, Krukowski, Artur, Argyreas, Nikos, Gorgas, Vangelis, Kyriazanos, Dimitrios, Axiotis, Dimitrios I and Thomopoulos, Stelios CA, ToD: An intelligent location-based transport management system, In 2007 IEEE Intelligent Vehicles Symposium, (Pages: 793–798), 2007.