1. Hall thruster direct drive demonstration;Hamley,1997
2. Direct drive hall thruster system development;Hoskins,2003
3. Solar array augmented electrostatic discharge in GEO;Hoeber,1998
4. Mechanism for spacecraft charging initiated destruction of solar arrays in GEO;Katz,1998
5. Development of a dome Fresnel lens/GaAs photovoltaic concentrator for space applications;Piszczor,1987