Koshel, R. J. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
Lua i Stíl Chicago (17ú heag.)Koshel, R. John. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
Lua MLA (9ú heag.)Koshel, R. John. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
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