HEFTY, J., IGONDOVÁ, M. and DROŠČÁK, B. 2009. Homogenization of long-term GPS monitoring series at permanent stations in Central Europe and Balkan Peninsula. Contributions to Geophysics and Geodesy. 39, 1 (Mar. 2009), 19-42. DOI:https://doi.org/10.2478/v10126-009-0002-8.