Righetti, Flavia, Pier Francesco Biagi, Tommaso Maggipinto, Luigi Schiavulli, Teresa Ligonzo, Anita Ermini, Iren Adeline Moldovan, Adrian Moldovan, Aydin Buyuksarac, Hugo Gonzales Silva, Mourad Bezzeghoud, Michael E. Contadakis, Dimitrios Arabelos, and Thomas Xenos. “Wavelet Analysis of the LF Radio Signals Collected by the European VLF/LF Network from July 2009 to April 2011”. Annals of Geophysics 55, no. 1 (April 24, 2012). Accessed March 29, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5188.