1. A carrier for in orbit science and technology demonstration;Hartmann,1990
2. ASTRO-SPAS and the ORFEUS-SPAS mission;Densing;Prep. for the Future,1993
3. ASTRO-SPAS—design and structure verfication concept of a multiple-payload scientific satellite;Franz,1994
4. Low cost avionics for the SPAS family of satellites;Möllenhoff,1994
5. Development and test of the ASTRO-SPAS attitude measurement and control system;Gradmann,1994