HEFTY, Ján, and Miroslava IGONDOVÁ. “Diurnal and Semi-Diurnal Coordinate Variations Observed in EUREF Permanent GPS Network – a Case Study for Period from 2004.0 to 2006.9”. Contributions to Geophysics and Geodesy 40, no. 3 (December 8, 2010): 225–247. Accessed February 4, 2026. https://journals.savba.sk/index.php/cgg/article/view/5132.