TY - GEN AU - R D Elbourn AU - Judith F Gilsinn C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1969-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.10117 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1969 TI - Simulation of air traffic control radar beacon code assignment plans ::final report on phase I ER -