1. Cyclotron Absorption in Metallic Bismuth and Its Alloys
2. H. Alfvén,Cosmical Electrodynamics(Clarendon Press, Oxford, 1950);
3. Cyclotron Resonance in Graphite
4. R. G. Chambers,The Fermi Surface, edited by W. A. Harrison and M. B. Webb (John Wiley & Sons, Inc., New York, 1960), p. 104.