1Hugentobler U,Dach R,Fridez P.Documents of Bernese Software Version 5.0 [R].Berne:University of Berne,2005
2Hugentobler U , Schaer S, Fridez P. Bernese GPS software Version 4.2,Astronomical Institute/University of Bern, 2001.
3Dong Danan & Yehuda Bock. Global positioning system. Network analysis with phase ambiguity resolution applied to crustal deformation studies in California, Journal of Geophysical Research 1989, (B4):3949- 3966.
4Hugentobler U,Schaer S,Fridez P.Bernese GPSSoftware Version 4.2[]..2001