1. ALLIS , W. P. , 1958 ,Proc. Symp. on Elect. Waveguides, Brooklyn Polytechnic Inst.( New York Interscience ), p. 149 .
2. DRUMMOND , J. E. , 1961 ,Proc. Fifth Intern. Conf. Ionization Phenomena in Gases, Munich , 1 , 517 .
3. The dead space in plasma oscillators
4. JONES , J. M. , 1964 , Ph.D. Thesis , Belfast .
5. Coupling between plasma electron and ion oscillations