VALACH, Fridrich; VÁCZYOVÁ, Magdaléna; DOLINSKÝ, Peter; VAJKAI, Melinda. Substitution for lost one-hour means of the geomagnetic elements for the first half of the 20-th century at the Hurbanovo Geomagnetic Observatory by means of neural networks. Contributions to Geophysics and Geodesy, [S. l.], v. 43, n. 2, p. 125–140, 2013. DOI: 10.2478/congeo-2013-0008. Disponível em: https://journals.savba.sk/index.php/cgg/article/view/5178. Acesso em: 4 feb. 2026.