Lehmann, P. Optical Measurement Systems for Industrial Inspection VII. SPIE Digital Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLehmann, Peter. Optical Measurement Systems for Industrial Inspection VII. SPIE Digital Library.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLehmann, Peter. Optical Measurement Systems for Industrial Inspection VII. SPIE Digital Library.
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