1. N. A. Krall and A. W. Trivelpiece,Principles of Plasma Physics(McGraw-Hill, New York, 1973), p. 562.
2. P. G. de Gennes,Superconductivity of Metals and Alloys(Benjamin, New York, 1966), p. 102.
3. A Collective Description of Electron Interactions: II. CollectivevsIndividual Particle Aspects of the Interactions
4. Passage of Charged Particles through Plasma
5. Y. H. Ohtsuki,Charged Beam Interaction with Solids(Taylor and Francis, London, 1983), p. 174.