1. Bock Y, Jonge de P, Honcik D, Fayman J (2003) Wireless instantaneous network RTK: positioning and navigation. In: Proceedings of ION GPS 2003, Portland, 9?12 September 2003, pp 1397?1405
2. Chen R (2003) EGNOS positioning at high latitude with a GPRS-based EGNOS SIS receiver. In: Proceedings of ION GPS 2003, Portland, 09?12 September, pp 2828 ?2832
3. Chen X, Han S, Rizos C, Goh PC (2000) Improving real-time positioning efficiency using the Singapore integrated multiple reference station network. In: Proceedings of ION GPS 2000, Salt Lake City, 19?22 September 2000, pp 9?16
4. Chen R, Torán F, Ventura-Traveset J (2003) Access to the EGNOS signal in space over mobile-IP. GPS Solutions 7(1):16?22
5. Chen R, Li X, Weber G (2004) Test results of an Internet RTK system based on the NTRIP protocol. In: Proceedings of the GNSS 2004 conference, Rotterdam, 16?19 May 2004