Koval, Y.A., Pryimak, V.Y. and Hussein, A.F. 2013. POSSIBLE REDUCTION OF IONOSPHERIC COMPONENTS, THE TIMING OF THE USE OF SIGNALS SBAS. Radio Electronics, Computer Science, Control. 1 (Jun. 2013). DOI:https://doi.org/10.15588/1607-3274-2013-1-6.