TY - GEN AU - Eyvon M Petty C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2005-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.6636-01 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2005 TI - NIST time and frequency bulletin, no. 565: ER -