TY - GEN AU - Stone, William C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1997-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.6055 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1997 TI - NIST construction automation program, report no. 3::electromagnetic signal attenuation in construction materials ER -