A Vision of Future Space Transportation Systems (AAS 12-562)
A New Approach to Spacecraft Relative Motion Control
Keynote Address Socio-Economic Considerations of Future Space Transportation Systems
Altitude Control of the Balloon Applied to Venus Exploration
Safety Operation Experiment for M-V Launch Vehicle (IAA 91-582)
Study on Hybrid Engine for Nanospacecraft Launch Reusable Vehicle (NRV)