TY - GEN AU - Cheok, Geraldine S AU - Lipman, Robert R AU - Witzgall, Christoph AU - Bernal, Javier AU - Stone, William C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2000-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.6457 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2000 TI - NIST construction automation program report no. 4::non-intrusive scanning technology for construction status determination ER -