Solar Physics

, Volume 20, Issue 1, pp 186–187 | Cite as

27-Day recurrence and long term modulation of cosmic ray intensity

  • V. K. Balasubrahmanyan
  • D. Venkatesan
Research Note


Term Modulation 
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Copyright information

© D. Reidel Publishing Company 1971

Authors and Affiliations

  • V. K. Balasubrahmanyan
    • 1
  • D. Venkatesan
    • 2
  1. 1.Code 661, NASA/Goddard Space Flight Center GreenbeltU.S.A.
  2. 2.Physics DepartmentUniversity of CalgaryCalgaryCanada

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