1. Bierman, G. (1977), Factorization methods for discrete sequential estimation ,Academic Press, New York, NY.
2. Blewitt, G. (1989), Carrier phase ambiguity resolution for the Global Positioning System applied to geodetic baselines up to 2000 km, Journ. Geophys. Res., Vol. 94 ,No. B8, pp. 10187–10283.
3. Blewitt, G. (1990), An automatic editing algorithm for GPS data, Geophys. Res. Lett., Vol. 17, No. 3, pp. 199–202.
4. Blewitt, G. (1990), A new tool for dense monitoring of crustal strain: GPS rapid static surveying, Eos. Trans. Am. Geophys. U., Vol. 71 ,No. 17, p. 483.
5. Blewitt, G., and S.M. Lichten (1992), Carrier phase ambiguity resolution up to 12000 km: Results from the GIG’91 experiment, in Proc. of the Sixth Int. Symp. on Satellite Positioning ,Columbus, Ohio State University.