1. J.J. O'Dwyer, The Theory of Electrical Conduction and Breakdown in Solid Dielectrics (Oxford University Press, London 1973)
2. L.D. Landau and E.M. Lifshitz, Electrodynamics of Continuous Media (Pergamon Press, London, New York, Paris, 1960)
3. T. Hibma and H.R. Zeller, J. Appl. Phys. 59, 1614 (1986)
4. H.R. Zeller and W.R. Schneider, J. Appl. Phys. 56, 455 (1984)
5. E. Cartier and P. Pfluger, Proc. of the 2nd Int. Conf. on Conduction and Breakdown in Solid Dielectrics, Erlangen (1986), p. 308 (IEEE Service Center, Piscataway N.J., USA)