TY - GEN AU - Gebbie, Katharine B C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1992-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.4741 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1992 TI - Physics Laboratory::technical activities 1991 ER -