• DASA/MBB-Space Communications & Propulsion Division, • DASA-Telefunken Systems Technik, • MAN Technologic, • ONERA, • ESTEC, • Association International Arsat, • Surrey Satellite Technology • Kayser-Threde, • Lasersdot, • Sylarec, • Aerospatiale, • Arianespace, • Swedish Space Corporation, DLR, • Alenia, • Electronika. In the United States • The Center for Space Power, Texas A&M, • The Electromagnetics & Microwave Laboratory, Texas A&M, • The Space Studies Institute, • ExtraTerrestrial Materials, Inc., • University of Alabama in Huntsville, • International MicroSpace, • NASA Goddard Space Flight Center. Specific contributions and comments from these organisations are providing the Appendix.
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