TY - GEN AU - Neil Ashby C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1975-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.659 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1975 TI - An earth-based coordinate clock network: ER -