1. B. M. Vladimirsky, Biophysics (Moscow) 43(4), 534 (1998).
2. V. V. Adushkin and A. A. Spivak, Izv., Phys. Solid Earth 48(3), 181 (2012).
3. A. L. Chizhevsky, Terrestrial Echo of Solar Storms (Mysl’, Moscow, 1976) [in Russian].
4. E. Naylor, Earth Moon Planets 85–86, 291 (2001).
5. C. C. Chabot and W. H. Watson, Curr. Zool. 56(5), 499 (2010).