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BIEHL, 1949, PHYS REV, V75, P688
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[3]
HULSIZER RI, 1949, PHYS REV, V76, pA164
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JANOSSY L, 1948, COSMIC RAYS, P308
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The east-west symmetry of the cosmic radiation at very high elevations near the equator and evidence that protons constitute the primary particles of the hard component
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[6]
JOHNSON TH, 1938, J FRANK I, V226, P533
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MILLIKAN, 1943, PHYS REV, V63, P234
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A precision world survey of sea-level cosmic-ray intensities
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1936, 50 (01)
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