1. D. Böhm: The Characteristics of Electrical Discharges in Magnetic Fields N.N.E.S. 1–5, ( McGraw - Hill, New York 1949 )
2. G. Dearnaley, P.D. Goode, Inst. Phys. Conf. Ser. No. 54, 26 (1980)
3. Separation of Isotopes in Calutron Units, ed., H.W Savage, Nuclear Energy Series (1951)
4. I. Chavet, R. Bernas, Nucl. Instr. & Meth. 51, 77 (1967)
5. I. Chavet, M. Kanter, M. Menat, Nucl. Instr. & Meth. 139, 47 (1976)