TY - GEN AU - Malcolm W Chase C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1990-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.89-4216 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1990 TI - Technical activities 1989 standard reference data program: ER -