1. Akinyan, S.T., Bazilevskaya, G.A., Ishkov, V.N., Miroshnichenko, L.I., Nazarova, M.N., Pereyaslova, N.K.: 1983, In: Logachev, Yu.I. (ed.) Catalogue of Solar Proton Events 1970 – 1979, Nauka, IZMIRAN, Moscow, 184.
2. Aschwanden, M.J., Freeland, S.L.: 2012, Astrophys. J. 754, 112.
3. Aschwanden, M.J., Tarbell, T.D., Nightingale, R.W., Schrijver, C.J., Title, A., Kankelborg, C.C., Martens, P.C.H., Warren, H.P.: 2000, Astrophys. J. 535, 1047.
4. Bazilevskaya, G.A., Vashenyuk, E.V., Ishkov, V.N., Miroshnichenko, L.I., Nazarova, M.N., Pereyaslova, N.K.: 1986, In: Logachev, Yu.I. (ed.) Catalogue of Energetic Spectra of Solar Proton Events 1970 – 1979, Nauka, IZMIRAN, Moscow, 235.
5. Bazilevskaya, G.A., Vashenyuk, E.V., Ishkov, V.N., Miroshnichenko, L.I., Nazarova, M.N., Pereyaslova, N.K.: 1990, In: Logachev, Yu.I. (ed.) Catalogue of Solar Proton Events 1980 – 1986, World Data Center, Moscow, B-2.