1. N. Bade, D. Engels, W. Voges, et al., Astron. Astrophys., Suppl. Ser. 127, 145 (1998).
2. R. E. Gershberg, Flares on Red Dwarf Stars (Nauka, Moscow, 1970).
3. R. Greimel and R. M. Robb, Inf. Bull. Var. Stars, No. 4652 (1998).
4. G. A. Gurzadyan, Stellar Flares: Physics. Cosmogony (Nauka, Moscow, 1985).
5. H. Jenkner, B. Lasker, C. Sturch, et al., Astron. J. 99, 2082 (1990).