| | European Space Agency |
| | Keplerlaan 1, 2201 AZ, Noordwijk, The Netherlands |
| http://www.esa.int | | Roger.Walker@esa.int |
| ryzyko ekologiczne |
| 2004 | | Space Mission Priorities for Near-Earth Object Risk Assessment and | abs | | 63 | | str | 1,4 | mb |
| | Reduction |
| technologia i postęp techniczny w ochronie środowiska |
| 2004 | | CONCEPTS FOR NEAR-EARTH ASTEROID DEFLECTION USING | abs | | 13 | | str | 0,4 | mb |
| | SPACECRAFT WITH ADVANCED NUCLEAR AND SOLAR ELECTRIC |
| | PROPULSION SYSTEMS |
| 2002 | | Review of European Ground Laboratories and Infrastructures for Sciences | abs | | 36 | | str | 0,2 | mb |
| | and Support of Exploration |