TY - GEN AU - Hartsfield, W L AU - Ostrow, S M AU - Silberstein, R C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1948-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.CRPL.5-5 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1948 TI - Back-scatter observations by the Central Radio Propagation Laboratory August 1947- March 1948: ER -