1. S. N. Vernov, G. B. Khristiansen, V. B. Atrashkevich, et al., in Proceedings of the 16th International Cosmic Ray Conference ICRC, Kyoto,
1979, Vol. 6, p. 129.
2. V. B. Atrashkevich, R. I. Chernykh, Yu. A. Fomin, et al., in Proceedings of the 20th International Cosmic Ray Conference ICRC, Moscow,
1987), Vol. 6, p. 63.
3. G. B. Khristiansen, V. B. Atrashkevich, R. I. Chernykh, et al., in Proceedings of the 21th International Cosmic Ray Conference ICRC, Adelaide,
1990, Vol. 9, p. 150.
4. V. B. Atrashkevich, G. K. Garipov, N. N. Kalmykov, et al., in Proceedings of the 22th International Cosmic Ray Conference ICRC, Dublin,
1991, Vol. 4, p. 319.
5. G. K. Garipov and A. A. Silaev, Phys. At. Nucl. 83, 442 (2020). https://doi.org/10.1134/S1063778820020106