TY - GEN AU - Cunningham, Diane C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.80-2133 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Data bases available at the Natural Bureau of Standards Library: ER -