TY - GEN AU - K B Peterson C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1988-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.1315 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1988 TI - Investigation of the hydrogen source for masers: ER -