KOČI, Eduard; VALACH, Fridrich. A sign of the dayside current wedge in geomagnetic observations at Stará Ďala (present-day Hurbanovo) on 16 April 1938. Contributions to Geophysics and Geodesy, [S. l.], v. 55, n. 3, p. 297–311, 2025. DOI: 10.31577/congeo.2025.55.3.2. Disponível em: https://journals.savba.sk/index.php/cgg/article/view/5822. Acesso em: 4 feb. 2026.