TY - RPRT TI - The influence of the ground (in the immediate vicinity of the receiving location) on the calibration and use of VHF field-intensity meters AU - Greene, Frank M PY - 1949 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CRPL 8-3 DO - 10.6028/NBS.CRPL.8-3 ER -