Watkins, W. Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process. SPIE Digital Library.
Lua i Stíl Chicago (17ú heag.)Watkins, Wendell. Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process. SPIE Digital Library.
Lua MLA (9ú heag.)Watkins, Wendell. Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process. SPIE Digital Library.
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