1. J. W. Davisson, Phys. Rev. 70, 685 (1946).
2. A. A. Vorob’ev and E. K. Zavadovskaya, Electrical Strength of Solid Dielectrics (GITTL, Moscow, 1956) [in Russian].
3. Yu. N. Vershinin, R. V. Emlin, S. O. Cholakh, V. G. Shpak, and V. A. Beloglazov, Pis’ma Zh. Tekh. Fiz. 16(6), 49 (1990) [Sov. Tech. Phys. Lett. 16 (3), 225 (1990)].
4. A. L. Gurskii, E. V. Lutsenko, and G. P. Yablonskii, Crystallographic Orientation of the Paths of Electric Discharge in Dielectrics and Semiconductors (B. I. Stepanov Institute of Physics, Minsk, 1990) [in Russian].
5. A. A. Vorob’ev, Insulating Properties, Strength and Fracture of Dielectrics (Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk, 1960) [in Russian].