1. Murzin, V.S., Astrofizika kosmicheskikh luchei: Uchebnoe posobie dlya vuzov (Cosmic Rays Astrophysics. Student’s Book for High School), Moscow: Univ. Kniga, Logos, 2007.
2. Chupp, E.L., Phys. Scr., 1987, vol. 18, pp. 5–19.
3. Volodichev, N.N., Kuzhevskii, B.M., Nechaev, O.Yu., et al., Cosmic Res., 1997, vol. 35, no. 2, p. 135.
4. Yasunaga, S., US Patent 5241175, 1993.
5. Adriani, O., Barbarino, G.C., Bazilevskaya, G.A., et al., Proc. 30th ICRC, Mexico, 2008, vol. 2, pp. 325–328.