rootbrowseIAC-04IAA.3.6session PP. Poster Session on Stepping Stones to the Future: Strategies, Architectures, Concepts and TechnologiesPapers1. REP Concept Feasibility Study2. The MoonMars Workshop Scenario for Manned Exploration of the Moon, Mars and Beyond3. Enhancing SPDM Operation Capabilities as a Stepping Stone to Future Robotics Missions4. Biomass Based Fuel Cells for Manned Space Exploration