Number of items:
1
.
Johnston, Alan Robert
(1956)
Absolute Cosmic-Ray Ionization in the Atmosphere at Balloon Altitudes.
Dissertation (Ph.D.), California Institute of Technology.
doi:10.7907/QZ0V-ND39.
https://resolver.caltech.edu/CaltechETD:etd-03242004-144425
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Wed Dec 17 12:04:31 2025 UTC
.