1. 1. Abramovitz M., Stegun I. (1979) Reference book on special functions. M.: Science. 832 p. (in Russian).
2. 2. Galperin B. A., Toptygin I. N., Fradkin A. A. (1971) Rasseyaniye chastits magnitnymi neodnorodnostyami v sil'nom magnitnom pole. Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki, 60(3), 972 (in Russian).
3. 3. Dorman L. I., Katz M. E. (1973) O fluktuaciyah intensivnosti solnechnyh kosmicheskih luchej. Tr. 5-go Leningradskogo mezhdunarodnogo seminara, FTI. 311 (in Russian).
4. 4. Prudnikov A. P., Brychkov Yu. A., Marichev O. I. (1981) Integraly i ryady. M.: Nauka. 800 p. (in Russian).
5. 5. Toptygin I. N. (1983) Kosmicheskiye luchi v mezhplanetnykh magnitnykh polyakh. M.: Nauka. 304 p. (in Russian)