1. G. Plass, I. Hoffmann, Status of the Heavy-Ion-Driven Ignition Facility Collaboration, GSI-Report, GSI-96-02, Darmstadt, 1996.
2. The Physics and Technology of Ion Source;Keller,1989
3. Criterion for Vacuum Sparking Designed to Include Both rf and dc
4. A. Maaser, Diploma Thesis, Universität Frankfurt, 1993.