Vol. 2 No. 3 (1963)

Articles

• Correction of Background Effect in Photographic Photometry

  K. Purbosiswojo

  115-128

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• On the Nearest Real Singularities of a Single Loop Feynman Diagram

  M. Barmawi

  129-139

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• Photometry of the Galactic Cluster NGC 6649

  Pik Sin The, Curt Roslund

  141-152

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