1. Aglietta M., B. Alessandro, P. Antonioni et al. “Gamma-rays and ionizing component during thunderstorms at Gran Sasso”, Proc. 26th Intern. Cosmic ray Conference Salt Lake City, 7, 351–354 (1999).
2. Alexeenko V.V., A.E. Chudakov, V.G. Sborshikov, and V.A. Tizengauzen “Short perturbations of cosmic ray intensity and electric field in atmosphere”, Proc. 19th Intern. Cosmic Ray Conf. La Jolla, 5 352–355 (1985).
3. Alexeenko V.V., A.B. Chernyaev, A.E. Chudakov, N.S. Khaerdinov, S. Kh. Ozrokov, and V.G. Sborshikov “Short perturbations of cosmic ray intensity and electric field in atmosphere”, Proc. 20th Intern. Cosmic Ray Conf. Moscow, 4 272–275 (1987).
4. Alexeenko V.V., N.S. Khaerdinov, A.S. Lidvansky, and V.B. Petkov “Electric field disturbances in the summer-time atmosphere and associated variations of CR intensity”, Proc. 27th Intern. Cosmic Ray Conf. Hamburg, 10 4161–4164 (2001).
5. Alexeenko V.V., N.S. Khaerdinov, A.S. Lidvansky, and V.B. Petkov “Transient variations of secondary cosmic rays due to atmospheric electric field and evidence for pre-lightning particle acceleration”, Phys. Lett.
A301 No. 3–4, 299–306 (2002).