Duka, B., Gaya-Piqué, L. R., De Santis, A., Bushati, S., Chiappini, M. and Dominici, G. (2004) “A geomagnetic reference model for Albania, Southern Italy and the Ionian Sea from 1990 to 2005”, Annals of Geophysics, 47(5). doi: 10.4401/ag-3363.