1. “Tabellen der Elektronenphysik, Ionen-physik und Ubermikroskopie“;von Ardenne,1956
2. “Development of a Demonstration Ion Engine (A Proposal to Wright Air Development Center), FZM-1901, Convair, Fort Worth, Texas, Nov. 1959. (Confidential)
3. “Gaseous Conductors,“;Cobine,1949
4. “The Characteristics of Electrical Discharges in Magnetic Fields,“;Guthrie,1949
5. “Physics of Fully Ionized Gases,“;Spitzer,1956