1. E. Fawcett,Adv. Phys. 13, 139 (1964).
2. A. B. Pippard, Magnetoresistance in Metals, Cambridge University Press (1989).
3. D. J. Sellmyer, Solid State Physics, Vol. 33, edited by H. Ehrenreich, F. Seitz, and D. Turnbull, Academic Press, New York (1978), p. 83.
4. O. Thomas, J. P. Senateur, R. Madar, O. Laborde, and E. Rosencher,Sol. State Commun. 55, 629 (1985).
5. R. Marani, F. Nava, A. Rouault, R. Madar, and J. P. Senateur,J. Phys.: Condens. Matter 1, 5887 (1989).