VÁCZYOVÁ, Magdaléna; VALACH, Fridrich. The effect of the geomagnetic activity on the geomagnetic measurement’s accuracy. Contributions to Geophysics and Geodesy, [S. l.], v. 36, n. 2, p. 229–237, 2021. Disponível em: https://journal.geo.sav.sk/cgg/article/view/328. Acesso em: 17 aug. 2025.