1. Banville S (2016) GLONASS ionosphere-free ambiguity resolution for precise point positioning. J Geodesy 90(5):487–496
2. Bertiger W, Desai SD, Haines B, Harvey N, Moore AW, Owen S, Weiss JP (2010) Single receiver phase ambiguity resolution with GPS data. J Geodesy 84(5):327–337
3. Böhm J, Niell A, Tregoning P, Schuh H (2006) Global Mapping Function (GMF): A new empirical mapping function based on numerical weather model data. Geophys Res Lett 33(7):L07304
4. Cao W, O’Keefe K, Cannon M (2007) Partial ambiguity fixing within multiple frequencies and systems. In: Proceedings of the 20th international technical meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2007), Fort Worth, TX, USA, 25–28 September, 312–323
5. Collins P (2008) Isolating and estimating undifferenced GPS integer ambiguities. In: Proceedings of the 2008 national technical meeting of the Institute of Navigation, San Diego, CA, USA, 28–30 January, 720–732