Koshel, R. J. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKoshel, R. John. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKoshel, R. John. Novel Optical Systems Design and Optimization XII. SPIE Digital Library.
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