1. 1. V.P. Kovalev. Secondary electrons (Moscow: Energoatomizdat, 1987) 178 p. (Rus) Book
2. 2. M.S. Freedman, F.T. Porter, F.I. Wagner, P.P. Day. Transition in 235U of Less Than 23 Electron Volts. Phys. Rev. 108 (1957) 836. https://doi.org/10.1103/PhysRev.108.836
3. 3. B.V. Bobykin, V.P. Burminskij, S.K. Lyubov. Poverkhnost': Fizika, Khimiya, Mekhanika 9 (1992) 71. (Rus)
4. 4. V.T. Kupryashkin, L.P. Sidorenko, A.I. Feoktistov, I.P. Shapovalova. Izv. RAN. Ser. fiz. 67(10) (2003) 1467. (Rus)
5. 5. V.T. Kupryashkin, L.P. Sidorenko, A.I. Feoktistov, I.P. Shapovalova. Izv. RAN. Ser. fiz. 68(8) (2004) 1208. (Rus)