1. Total ozone mapping spectrometer, http://toms.gsfc.nasa.gov/
2. ZARM—University of Bremen, http://www.zarm.uni-bremen.de
3. Kalman Filtering—Theory and Practice;Grewal,1993
4. International Geomagnetic Reference Field, http://nssdc.gsfc.nasa.gov/space/model/models/igrf.html
5. S. Theil, M. Wiegand, H.J. Rath, SATSIM—A generic tool for attitude control system development, simulation and testing, 51st International Astronautical Congress, Rio de Janerio, Brazil, 2–6 Oct 2000, IAF-00-U.2.05.