Hoover, R. X-Ray Optics, Instruments, and Missions II. SPIE Digital Library.
Lua i Stíl Chicago (17ú heag.)Hoover, Richard. X-Ray Optics, Instruments, and Missions II. SPIE Digital Library.
Lua MLA (8ú heag.)Hoover, Richard. X-Ray Optics, Instruments, and Missions II. SPIE Digital Library.
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