TY - GEN AU - M C Jr Thompson AU - M J Vetter AU - Donald M Waters C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1958-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.5548 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1958 TI - A precision frequency standard for x-band: ER -