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The Helium Nuclei of the Primary Cosmic Radiation as Studied Over a Solar Cycle of Activity
P. S. Freier
C. J. Waddington
出版
School of Physics and Astronomy, University of Minnesota
, 1964
URL
http://books.google.com.hk/books?id=yfwWAQAAMAAJ&hl=&source=gbs_api