Siegmund, O. UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX. SPIE Digital Library.
Chicago Style (17th ed.) ZitazioaSiegmund, Oswald. UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX. SPIE Digital Library.
MLA (9th ed.) ZitazioaSiegmund, Oswald. UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX. SPIE Digital Library.
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