rootbrowseIAC-07D2session 77. Requirements for New Space Transportation SystemsPapers1. Launch Verification Process for Atlas V Missions2. Optimization Of Operational Cost And Risk In Assembly, Testing And Launch Of Rockets3. Constellation Propellant Options Study Results4. Flight Mechanics Of The Re-entry From Moon And Mars Human Missions5. Optimal Design of Earth Return Trajectories from Moon for Lunar Transportation System6. Single launch, direct Earth return MSR mission7. Latest Progress in Research on the SpaceLiner High-Speed Passenger Transportation Concept8. A Technique For Comparative Analysis Of Future Space Transportation Systems In A Frame Of A Russian-European Concept9. Technical Assessments of Future European Space Transportation Options10. Exploration Spacecraft - General Design Guidelines