28 Sep 2005
A possible preseismic anomaly in the ground wave of a radio broadcasting (216 kHz) during July-August 1998 (Italy)
P. F. Biagi, L. Castellana, T. Maggipinto, R. Piccolo, A. Minafra, A. Ermini, S. Martellucci, C. Bellecci, G. Perna, V. Capozzi, O. A. Molchanov, and M. Hayakawa
Nat. Hazards Earth Syst. Sci., 5, 727–732, https://doi.org/10.5194/nhess-5-727-2005,https://doi.org/10.5194/nhess-5-727-2005, 2005