1. Bordoloi, K., Grenier C., and Reynolds J. (1967) Phys. Letters, 25A, 269.
2. Cracknell, Arthur and Wong, K. C. (1973) The Fermi Surface, Oxford University Press, 193–196.
3. Ziman, J. (1964) Principles of the Theory of Solids, Cambridge University Press.
4. Onsager, L. (1931) Phys. Rev. 37, 405; 38, 2265.
5. Stark, R. (1962) Phys. Rev. Letters 9, 482.