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Worldwide Radio Noise Levels Expected in the Frequency Band 10 Kilocycles to 100 Megacycles. W.Q. Crichlow, D.F. Smith, R.N. Morton, and W.R. Corliss

W. Q. CrichlowD. F. SmithR. N. MortonW. R. CorlissEtats-Unis. National bureau of standards

出版	U.S. Government Printing Office, 1955
URL	http://books.google.com.hk/books?id=_KX9tgAACAAJ&hl=&source=gbs_api