TY - GEN AU - T Michael Souders C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1979-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.1105 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1979 TI - A 20 bit + sign, relay switched D: ER -