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2. Effect of cathode position on Hall-effect thruster performance and cathode coupling voltage;Sommerville,2007
3. Vacuum facility effects on Quad confinement thruster testing;Lucca Fabris,2017
4. An investigation of mercury hollow cathode phenomena;Siegfried,1978
5. Phenomenological model describing orificed, hollow cathode operation;Siegfried;AIAA J.,1983