1. Bloch, Ya.L., Dorman, L.I., and Kaminer, N.S., Proc. 6th ICRC, Moscow, 1959, vol. 4, p. 77.
2. Krymskii, G.F., Kuz’min, A.I., Krivoshapkin, P.A., et al., Kosmicheskie luchi i solnechnyi veter (Cosmic Rays and Solar Wind), Novosibirsk: Nauka, 1981.
3. Belov, A.V., Dorman, L.I., Eroshenko, E.A., et al., Proc. 24th, ICRC, Rome, 1995, vol. 4, p. 888.
4. Nagashima, K., Fujimoto, K., and Morishita, I., J. Geophys. Res., 1994, vol. 99, 21 419.
5. Ruffolo, D., Bieber, J.W., Evenson, P., and Pyle, R., Proc. 26th, ICRC, Salt Lake City, 1999, vol. 6, p. 440.