TY - GEN AU - Kartaschoff, P AU - Hellwig, Helmut C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1972-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.612 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1972 TI - Frequency shifts due to ramsey type interrogation in atomic beam tubes: ER -