ONDRÁŠKOVÁ, Adriena; ŠEVČÍK, Sebastián. The determination of Schumann resonance mode frequencies using iterative procedure of complex demodulation. Contributions to Geophysics and Geodesy, [S. l.], v. 43, n. 4, p. 305–326, 2013. DOI: 10.2478/congeo-2013-0018. Disponível em: https://journal.geo.sav.sk/cgg/article/view/100. Acesso em: 2 nov. 2025.