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Electron Densities and Scale Heights in the Topside Ionosphere - Alouette I Observations in Midlatitudes, Summer 1963, Winter 1963 - 1964
出版V.S.A. National Aeronautics and Space Administration. Scientific and Technical Information Office, 1966
URLhttp://books.google.com.hk/books?id=TpM9AQAAMAAJ&hl=&source=gbs_api