TY - GEN AU - Eyvon Petty C2 - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD DA - 2009-01-05 LA - en M1 - 6656-09 PB - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD PY - 2009 TI - NIST Time and Frequency Bulletin ER -