1. Baarda W (1968) A testing procedure for use in geodetic networks. Netherlands Geodetic Commission, Publications on Geodesy, New Series, Vol. 2, No. 5, Delft, The Netherlands
2. Betti B, Crespi M, Sanso F (1993) A geometric illustration of ambiguity resolution in GPS theory and a Bayesian approach. Manuscr Geod 18:317–330
3. Bibby JM, Toutenburg H (1977) Prediction and improved estimation in linear models. Wiley, New York
4. Blais JAR (1982) Synthesis of Kriging estimation methods. Manuscr Geod 7:325–352
5. Cressie N (1991) Statistics for spatial data. Wiley, New York