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Lua i Stíl Chicago (17ú heag.)Siegmund, Oswald. EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII. SPIE Digital Library.
Lua MLA (9ú heag.)Siegmund, Oswald. EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII. SPIE Digital Library.
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