1. Proc. 29th Int. Field Emission Symp.;Aitken,1982
2. Mercury Orbiter, a mission proposal to ESA to be considered as a candidate for the M3 mission, 27 May 1993;Balogh,1993
3. Proc. 29th Int. Field Emission Symp.;Bartoli,1982
4. A liquid cesium field ion source for space propulsion;Bartoli;J. Phys. D: Appl. Phys.,1984
5. Liquid metal ion emitter for potential stabilization of a Mercury Orbiter. Report of the Austrian Research Centre Seibersdorf;Fehringer;OEFZS-A-3193,1994