rootbrowseIAC-13E4session 11. Memoirs and Organisational HistoriesPapers1. André-Louis Hirsch (1899-1962) - A sponsor for early astronautics in France2. Heinz-Hermann Koelle and His Contributions to Space Development3. The Father of the High Thrust Ion Engine4. The Railroad and the Space Program Revisited: Historical Analogues and the Stimulation of Commercial Space Operations5. BMW rocket engines 1939-456. The Pedro Paulet's liquid propellant rocket engine invention:first step in the space rocketry7. BRAZILIAN ASTRONAUTICAL HISTORY: FROM SANTOS DUMONT UP TO ASTER MISSION8. Medical-biological research for manned space flights9. Entering the Sixtieth Year of Acta Astronautica