1. J.M. Ziman, Electrons and Phonons (Oxford University Press, Oxford, 1963)
2. E.G.S. Paige, Progress in Semiconductors, vol. 8, ed. by A.F. Gibson, R.E. Burgess (Temple Press Books, London, 1964)
3. B.R. Nag, Theory of Electrical Transport (Pergamon Press, New York, 1972)
4. A. Haug, Theoretical Solid State Physics (Pergamn Press, New York, 1972)
5. E.M. Conwell, High Field Transport in Semiconductors, in Solid State Physics, Suppl. 9 (Academic, New York, 1967)