TY - JOUR A1 - De Michelis, P. A1 - Consolini, G. A1 - Tozzi, R. T1 - On the multi-scale nature of large geomagnetic storms: an empirical mode decomposition analysis JO - Nonlin. Processes Geophys. J1 - NPG VL - 19 IS - 6 SP - 667 EP - 673 Y1 - 2012/11/29 PB - Copernicus Publications SN - 1607-7946 UR - https://npg.copernicus.org/articles/19/667/2012/ L1 - https://npg.copernicus.org/articles/19/667/2012/npg-19-667-2012.pdf DO - 10.5194/npg-19-667-2012 ER -