1. M S. Metsik, Physics of Mica Cleavage [in Russian], Vostochno-Sibirskoe Knizhnoe Izd. (1967).
2. A. R. Hippel, Dielectrics and Their Uses [Russian translation), Gosénergoizdat, Moscow-Leningrad (1959).
3. G. I. Skanavi, Dielectric Physics (Weak Fields) [in Russian], Gosizdat, Moscow-Leningrad (1949).
4. GOST 12723-67. Solid Dielectrics. Method for Determination of Relative Dielectric Permeability and Loss Angle Tangent in Frequency Range 9?10 GHz [in Russian], Izd. Standartov, Moscow (1967).
5. A. A. Brandt, The Study of Dielectrics at Ultrahigh Frequencies [in Russian], Fizmatgiz, Moscow (1963).