1. Lessons learned from the use of a GPS receiver in less than optimal conditions;Berthias,2001
2. Single frequency GPS orbit determination for low earth orbiters;Bertiger,1996
3. Factorization Methods for Discrete Sequential Estimation;Bierman,1977
4. On board MIR: orienting remote images with MOMSNAV;Föckersperger,1997
5. J.L. Gerner, J.L. Issler, D. Laurichesse, C. Mehlen, N. Wilhelm, Topstar 3000 – An Enhanced GPS Receiver for Space Application, ESA Final Presentation Days, 17 October 2000, http://www.estec.esa.nl/conferences/FPD/info/topstar3000.pdf, 2000