CONTADAKIS, Michael E.; ARABELOS, Dimitrios N.; PIKRIDAS, Christos; SPATALAS, Spyrous D. Total electron content variations over southern Europe before and during the M 6.3 Abruzzo earthquake of April 6, 2009. Annals of Geophysics, [S. l.], v. 55, n. 1, 2012. DOI: 10.4401/ag-5322. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5322. Acesso em: 12 jun. 2026.