1. Baker, D.N., Balstad, R., Bodeau, J.M., Cameron, E., Fennell, J.F., Fisher, G.M., Forbes, K.F., Kintner, P.L., Leffler, L.G., Lewis, W.S., Reagan, J.B., Small, A.A. III, Stansell, T.A., Strachan, L. Jr.: 2009, Severe Space Weather Events: Understanding Societal and Economic Impacts, The National Academies Press, Washington.
2. Brueckner, G.E., Howard, R.A., Koomen, M.J., Korendyke, C.M., Michels, D.J., Moses, J.D., Socker, D.G., Dere, K.P., Lamy, P.L., Llebaria, A., Bout, M.V., Schwenn, R., Simnett, G.M., Bedford, D.K., Eyles, C.J.: 1995, Solar Phys. 162, 357.
3. Budden, K.G., Uscinski, B.J.: 1970, Proc. Roy. Soc. Lond. A 316, 315.
4. Budden, K.G., Uscinski, B.J.: 1971, Proc. Roy. Soc. Lond. A 321, 15.
5. Budden, K.G., Uscinski, B.J.: 1972, Proc. Roy. Soc. Lond. A 330, 65.