DOLINSKÝ, P., VALACH, F. and VÁCZYOVÁ, M. 2013. Magnetic ground survey of Slovakia for the 2007.5 epoch – accuracy of geomagnetic elements distribution maps. Contributions to Geophysics and Geodesy. 43, 1 (Mar. 2013), 73-80. DOI:https://doi.org/10.2478/congeo-2013-0005.