Additional bibliography for study
1.Katsampalos, K., C. Kotsakis, M. Gianniou 2009. Hellenic Terrestrial Reference System 2007 (HTRS07): a regional densification of ETRS89 over Greece in support of HEPOS. EUREF 2009 Symposium, Florence, Italy, 27-30 May
2.Pikridas C., V.D. Andritsanos, A. Fotiou, D. Rossikopoulos, I.N. Tziavos 2002. Computing Orthometric Heights and Controlling their Quality by GPS and Local Geoid in Northern Greece. Proceedings of the European Navigation Conference – GNSS2002, Copenhagen, Denmark, 27-30 May
3.Fotiou A., C. Pikridas, D. Rossikopoulos S. Spatalas, V. Tsioukas and S.Katsougiannopoulos 2010. The Hermes GNSS NtripCaster of AUTh. Bulletin of Geodesy and Geophysics, former “Bollettino di Geodesia e Scienze Affini”, vol. LXIX, No.1, pp.35-43.
4.Fotiou A., C. Pikridas 2008. Evaluation of the potential accuracy of real time GPS positioning using the internet. Proceedings of the International Symposium on Modern Technologies, Education and Professional Practice in Geodesy and Related Fields, Sofia, Bulgaria, 6 - 7 November, pp.111-117.
5.Andritsanos V.D., A.Fotiou, E.Paschalaki, C.Pikridas, D.Rossikopoulos and I.N.Tziavos 2000. Local Geoid Computation and Evaluation. Physics and Chemistry of the Earth, Vol. 25, No 1, pp.63-69.
6.Tziavos I.N., and V.D. Andritsanos, 1998. Recent Geoid Computations for the Hellenic Area. Physics and Chemistry of the Earth, Vol. 24, No 1, pp.91-96.