TY - CONF AU - Yao, Jian AU - Parker, Thomas AU - Levine, Judah C2 - 2017 PTTI, Monterey, CA DA - 2017-01-31 LA - en PB - 2017 PTTI, Monterey, CA PY - 2017 TI - The development of a new Kalman-filter time scale at NIST ER -