References
- Landau , L. D. and Lifshits , E. M. 1976 . “Statistical Physics” , 583 Moscow : Nauka . (in Russian)
- Kosilov , A. T. , Perevoznikov , A. M. and Roshchupkin , A. M. 1983 . Ferroelectrics , 48 : 21
- Landau , L. D. and Lifshits , E. M. 1982 . “Electrodynamics of Continuous Media” , 626 Moscow : Nauka . (in Russian)
- Umansky , Ya. S. and Skakov , Yu. A. 1978 . “Physics of Metals” , 243 Moscow : Atomizdat . (in Russian)