1. A. G. Kadmenskii, N. Yu. Lebedev, A. F. Tulinov, et al., in Proceedings of the 11th All-Union Meeting on Physics of Charge Particles Interaction with Crystals (Izd. Mosk. Gos. Univ., Moscow, 1982), p. 50.
2. A. G. Kadmenski $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ and A. F. Tulinov, Poverkhnost, No. 2, 43 (2004).
3. J. Lindhard, Mat. Fys. Medd. Kgl. Dan. Vid. Selsk. 34(14), 1 (1965).
4. Yu. V. Bulgakov, in Proceedings of the 7th International Conference on Atomic Collisions in Solids, Moscow, 1977 (Izd. Mosk. Gos. Univ., Moscow, 1981), Vol. 1, pp. 41–44.
5. A. G. Kadmenski $$\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} $$ and V. V. Samarin, Poverkhnost, No. 5, 98 (2002).