1. Breus, T.K., Baevskii, P.M., Nikulina, G.A., Chibisov, S.M., Chernikova, A.G., Pukhlyanko, M.I., Oraevskii, V.N., Halberg, F., Cornelissen, G., and Petrov, V.M., Geomagnetic Activity Effects on Humans in Nonstationary Extreme Conditions and Comparison with Laboratory Observations, Biofizika, 1998, vol. 43, no. 5, pp. 767–775.
2. Chibisov, S.M., Breus, T.K., Levitin, A.E., and Drogova, G.M., Biological Effects of a Planetary Magnetic Storm, Biofizika, 1995, vol. 40, no. 5, pp. 959–968.
3. Cornelissen, G., Achievements of Franz Halberg, the Founder of Chronobiology and Chronomics, Geofiz. Prots. Biosfera, 2009, vol. 8, no. 2, pp. 75–84.
4. Dimitrova, S., Stoilova, I., Georgieva, K., Taseva, T., Jordanova, M., and Maslarov, D., Solar and Geomagnetic Activity and Acute Myocardial Infarction Morbidity and Mortality, Fundam. Space Res., 2009, vol. 161. http://www.stil.bas.bg/FSR2009/papl61.pdf
5. Dmitrieva, I.V., Khabarova, O.V., Obridko, V.N., Ragoulskaia, M.V., and Reznikov, A.E., Experimental Confirmations of the Bioeffective Effect of Magnetic Storms, Astronom. Astrophys. Transact., 2000, vol. 19, pp. 67–77.