 @article{tang_he_andam-akorful_2014, title={The performance of bds relative positioning usage with real observation data}, volume={20}, ISSN={1982-2170}, url={https://doi.org/10.1590/S1982-21702014000200014}, DOI={10.1590/S1982-21702014000200014}, number={2}, journal={Boletim de Ciências Geodésicas}, publisher={Universidade Federal do Paraná}, author={Tang, Xu and He, Xiufeng and Andam-Akorful, Samuel A.}, year={2014}, month={Apr}, pages={223–236} }