(1)
De Lauretis, M.; Francia, P.; Piancatelli, A.; Vellante, M.; Villante, U. Low and Mid-Frequency Pulsations in the Polar Cap: Polarization Pattern and MLT Dependence of the Spectral Power During the Descending Phase of the Solar Cycle. Ann. Geophys. 2009, 52 (1), 27-34. https://doi.org/10.4401/ag-4570.