TY - RPRT TI - Concerning a microwave refractometer : communication from the Heinrich Hertz Institute of the German Academy of Science at Berlin; Berlin Adlershof AU - Schunemann, R AU - Steffen, W AU - Barsis, Albrecht P AU - Thompson, Moody C Jr PY - 1958 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 6027 DO - 10.6028/NBS.RPT.6027 ER -