TY - GEN AU - Petrina Potts C2 - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD DA - 2013-01-18 DO - https://doi.org/10.6028/NIST.IR.1149-01 LA - en PB - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD PY - 2013 TI - NIST Time and Frequency Bulletin ER -