TY - GEN AU - Norton, Kenneth Alva C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1962-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.158 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1962 TI - Efficient use of the radio spectrum.: ER -