1. Dipartimento di Fisica; Universitá della Calabria; Cosenza Italy
2. British Antarctic Survey; Cambridge UK
3. Centre for the Analysis of Time Series; London School of Economics and Political Science; London UK
4. Centre for Fusion, Space and Astrophysics; University of Warwick; Coventry UK
5. IPCF/CNR Universitá della Calabria; Cosenza Italy