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    title = "A New Cosmic-Ray Telescope for High Altitudes",
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    title = "Primary Cosmic-Ray Protons and the Atom-Annihilation Hypothesis",
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    title = "Further Studies on the Origin of Cosmic Rays Helium Annihilation Rays and the Cause of Their Variability with Time",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr42,
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr40a,
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    doi = "10.1103/PhysRev.53.316",
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    doi = "10.1103/PhysRev.53.111",
    volume = "53"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:PICpr37b,
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    doi = "10.1103/PhysRev.52.1131",
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    doi = "10.1103/PhysRev.51.628",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:PICpr36,
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    issn = "0031-899X",
    doi = "10.1103/PhysRev.47.423",
    volume = "47"
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