1. Pljasheshnikov AV, Lagutin AA, Uchaikin VV (1979) The numerical method of solution of one-dimension cascade theory adjoint equations. In: Proceedings of the 16-th ICRC, Kyoto, vol. 7, pp. 1–6
2. Uchaikin VV, Pljasheshnikov AV, Lagutin AA, et al (1977) The calculational techniques of the fluctuations of the electron range corresponding to finite thickness layer. In: Proceedings of 15-th ICRC, Plovdiv, vol. 7, pp. 502–507
3. Uchaikin VV, Plyasheshnikov AV, Lagutin AA, Vetoshkin VV (1978) Numerical method for calculating fluctuations in the path of charged particles of an electromagnetic cascade in an infinite medium. Izv Vyssh Uchebn Zaved Fizica 4:27–30 (in Russian)
4. Pljasheshnikov AV, Lagutin AA, Uchaikin VV (1979) The numerical method of the radial distribution of electromagnetic cascade particles calculation. In: Proceedings of 16-th ICRC, Kyoto, vol 7, pp 13–17
5. Lagutin AA, Uchaikin VV, Chernyaev GV, Adjoint approach to EAS problem, ibid, pp 260–263