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An Investigation of the Perturbations Imposed Upon Radio Waves Penetrating the Ionosphere

Robert S. Lawrence

出版	Boulder Laboratories, National Bureau of Standards, U.S. Department of Commerce, 1957
URL	http://books.google.com.hk/books?id=FepsLLSilkgC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN