1. “Evaluation of the pseudorange performance by using software GPS receiver”;Shun-Ichiro Kondo;Journal of Global Positioning Systems,2005
2. “GPS Errors Statistical Analysis for Ground Receiver Measurements”;Akim;Keldysh Institute of Applied Mathematics, Russia Academy of Sciences,2002
3. “Understanding GPS: Principles and Applications”;Kaplan;Second Edition, Artech House Publishers, Boston USA,2006
4. G S RAO, “Global Navigation Satellite systems”,1st ed, India: McGraw-Hill, 2010.
5. Bo Xu et al. “Navigation Satellite Clock Error Prediction Based on Functional Network” Published online 30 September 2012 in Springer Science + Business Media New York 2012.