1. Abwerzger G (1999) Accuracy analysis on high-resolution geopotential models. Master’s thesis, Institut für Geodäsie, TU Graz
2. Baarda W (1968) A testing procedure for use in geodetic networks. Netherlands Geodetic Commission, New Series 5, Delft
3. ESA SP-1233(1999) The four candidate earth explorer core missions – gravity field and steady-state ocean circulation mission. ESA Report SP-1233(1), Granada
4. Gill P, Murray W, and Wright M (1981) Practical optimization, 4th edn. Academic London New York
5. Gundlich B, Koch K-R, Kusche J (2003) Gibbs sampler for computing and propagating large covariance matrices. J Geod 77:514–528