Zakarevičius, Algimantas, Saulius Šliaupa, Eimuntas Paršeliūnas, and Arminas Stanionis. 2012. “Deformation of Geodetic Network Based on GPS Data in the Baltic Region”. Geodesy and Cartography 34 (4):122-26. https://doi.org/10.3846/1392-1541.2008.34.122-126.