1. On the interoperability of IGS products for precise point positioning with ambiguity resolution
2. Bryant, R. E., and D. R. O’Hallaron. 2016. Computer systems a programmer’s perspective. Essex, UK: Pearson Education Ltd.
3. Fraser, D. C. 1967. A new technique for the optimal smoothing of data. Cambridge, MA: Massachusetts Institute of Technology.
4. A guide to using international GNSS service (IGS) products;Kouba J.;Geod. Surv. Div. Nat. Resour. Canada Ottawa,2009
5. Comparison of ionosphere-free, UofC and uncombined PPP observation models;Li B.;Acta Geod. Cartogr. Sin.,2015