1. Sentfleben, H.Z., Phys, 1931, vol. 32, p. 550.
2. Alad’ev, I.T and Efimov, V.A., Inzh. Fiz. Zhurn., 1963, vol. 6, no. 8, pp. 125–132.
3. Ostroumov, G.A., Electric Convection (review), Inzh. Fiz. Zhurn., 1966, vol. 10, no. 5, p. 683.
4. Landau, L.D. and Lifshits, E.M., Elekrodinamika sploshnykh sred (Electrodynamics of Continuous Media), Moscow: Fizmatgiz, 1957.
5. Panovskii, V. and Fillips, M., Klassicheskaya electrodinamika (Classic Electrodynamics), Moscow: Fizmatgiz, 1963.