1. M. V. Alania, D. G. Baranov, M. I. Tyasto, and E. S. Vernova, “The Changes of 27-Day Variations in Cosmic Rays and Geomagnetic Activity,” in Proceedings of the 26th ICRC, 1999, pp. 131–134.
2. A. B. Askerov and V. N. Obridko, “Magnetic Field in the Solar Wind: A Comparison with the Classical Model,” Geomagn. Aeron. 47(3), 303–308 (2007) [Geomagn. Aeron. 47, 285–290 (2007)].
3. G. A. Bazilevskaya and A. I. Sladkova, “Twenty-Seven Day Cosmic-Ray Variations during the Last Four Solar Activity Cycles,” Geomagn. Aeron. 36(4), 25–30 (1996) [Geomagn. Aeron. 36 (4), 438–41 (1996)].
4. A. V. Belov, “Cosmic Rays in the Heliosphere,” Astron. Vestn. 34(2), 158–168 (2000).
5. A. V. Belov, I. S. Veselovsky, R. T. Gushchina, et al., “Relation between the Long-Period CR Variations and the Magnetic Field in the Sun and Solar Wind,” Izv. Ross. Akad. Nauk, Ser. Fiz. 63(8), 1606–1610 (1999).