@article{krzyżek_2015,  title={MATHEMATICAL ANALYSIS OF THE ALGORITHMS USED IN MODERNIZED METHODS OF BUILDING MEASUREMENTS WITH RTN GNSS TECHNOLOGY},  volume={21},  ISSN={1982-2170},  url={https://doi.org//10.1590/S1982-21702015000400050},  DOI={/10.1590/S1982-21702015000400050},  number={4},  journal={Boletim de Ciências Geodésicas},  publisher={Universidade Federal do Paraná},  author={Krzyżek, Robert},  year={2015},  month={Oct},  pages={848–866} }