Cheok, G. S.; Lipman, R. R.; Witzgall, C.; Bernal, J.; Stone, W. C.
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NIST Construction Automation Program Report No. 4: Non-Intrusive Scanning Technology for Construction Status Determination.
National Institute of Standards and Technology, Gaithersburg, MD
NISTIR 6457,
January 2000,
98 p.