1. V. ASHKENAZI, L.G. AGROTIS and J. YAU (1985): “GPS Interferometric Phase Algorithms”. Proc. First Int. Symp. on Precise Positioning with the Global Positioning System, Rockville, Maryland.
2. C.C. GOAD (1985). “Precise Relative Position Determination Using Global Positioning System Carrier Phase Measurements in a Nondifference Mode”. Proc. First Inst Symp. on Precise Positioning with the Global Positioning System, Rockville, Maryland.
3. A. KLEUSBERG, R.B. LANGLEY, R. SANTERRE, P. VANICEK, D.E. WELLS, G. BEUTLER (1985): “Comparison of Survey Results from Different Types of GPS Receivers”. Proc. First Int. Symp. on Precise Positioning with the Global Positioning System, Rockville, Maryland.
4. B.W. REMONDI (1984): “Using the Global Positioning System (GPS) Phase Observable for Relative Geodesy: Modelling, Processing and Results”. PhD Dissertation, University of Texas at Austin, Texas.