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    title = "Millikan-Teacher and Friend",
    journal = "American Journal of Physics",
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    id = "record",
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    doi = "10.1119/1.1969929",
    volume = "32"
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    title = "Linear Air Trough",
    journal = "American Journal of Physics",
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    id = "record",
    issn = "0002-9505",
    doi = "10.1119/1.1969427",
    volume = "31"
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    title = "Vibrating Vane, Absolute Gas Pressure Gauge",
    journal = "Review of Scientific Instruments",
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    id = "record",
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    doi = "10.1063/1.1717976",
    volume = "33"
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    title = "Air-Bearing Maxwell Top",
    journal = "American Journal of Physics",
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    id = "record",
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    doi = "10.1119/1.1942084",
    volume = "30"
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    title = "The Role of Experimental Work",
    journal = "American Journal of Physics",
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    id = "record",
    issn = "0002-9505",
    doi = "10.1119/1.1941966",
    volume = "30"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHajp61b,
    title = "Light-Pressure Tube",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHajp61a,
    title = "Busch Tube for Determining e/m for the Electron",
    journal = "American Journal of Physics",
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    id = "record",
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    doi = "10.1119/1.1937814",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi61,
    title = "Variable Sensitivity Automatic Ionization Chamber",
    journal = "Review of Scientific Instruments",
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    id = "record",
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    doi = "10.1063/1.1717143",
    volume = "32"
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    title = "The Primary Cosmic Radiation",
    journal = "Annual Review of Nuclear Science",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20131217-143116187",
    id = "record",
    issn = "0066-4243",
    doi = "10.1146/annurev.ns.08.120158.001245",
    volume = "8"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHprl58,
    title = "Correlation of cosmic-ray intensity and solar activity",
    journal = "Physical Review Letters",
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    id = "record",
    issn = "0031-9007",
    doi = "10.1103/PhysRevLett.1.173",
    volume = "1"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr58,
    title = "Cosmic-ray changes from 1954 to 1957",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.109.608",
    volume = "109"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr57,
    title = "Cosmic rays near the north geomagnetic pole in the summers of 1955 and 1956",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr57",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.107.588",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi57,
    title = "Metal System for Chemical Reactions and for Studying Properties of Gases and Liquids",
    journal = "Review of Scientific Instruments",
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    id = "record",
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    doi = "10.1063/1.1715855",
    volume = "28"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr56,
    title = "Low-energy primary cosmic-ray particles in 1954",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr56",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.103.228",
    volume = "103"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi56,
    title = "Modification to the Automatic Ionization Chamber",
    journal = "Review of Scientific Instruments",
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    id = "record",
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    doi = "10.1063/1.1715511",
    volume = "27"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr55,
    title = {"Knee" of the cosmic-ray latitude curve},
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.98.845",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi54,
    title = "Techniques Useful in Evacuating and Pressurizing Metal Chambers",
    journal = "Review of Scientific Instruments",
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    id = "record",
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    doi = "10.1063/1.1771116",
    volume = "25"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr53,
    title = "Fluctuations and latitude effect of cosmic rays at high altitudes and latitudes",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.90.655",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi53b,
    title = "An Automatic Ionization Chamber",
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    id = "record",
    issn = "0034-6748",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi53a,
    title = "A Barometer Element for Radio-Sondes",
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    id = "record",
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    volume = "24"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr52,
    title = "Correlation of cosmic-ray ionization measurements at high altitudes, at sea level, and neutron intensities at mountain tops",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr52",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.87.889",
    volume = "87"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHajp52,
    title = "An Absolute Ampere Current Balance for Laboratory Use",
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    id = "record",
    issn = "0002-9505",
    doi = "10.1119/1.1933236",
    volume = "20"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BIEpr51,
    title = "Cosmic rays at airplane altitudes",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.83.1169",
    volume = "83"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr51,
    title = "Energy distribution of the primary cosmic radiation",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.83.649.2",
    volume = "83"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr50,
    title = "Correlation of geomagnetic cosmic-ray effects",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.78.674",
    volume = "78"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BIEpr50,
    title = "The Latitude and Longitude Effects in Cosmic Rays Over the United States and Canada at 30,000 Feet",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BIEpr50",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.78.172",
    volume = "78"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BIEpr49b,
    title = "Cosmic-Ray Experiments at High Altitudes over a Wide Range of Latitudes",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BIEpr49b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.76.914",
    volume = "76"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BIEpr49a,
    title = "Note on the east-west effect",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.75.688.2",
    volume = "75"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:20140731-164124087,
    title = "A New Cosmic-Ray Telescope for High Altitudes",
    journal = "Reviews of Modern Physics",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140731-164124087",
    id = "record",
    issn = "0034-6861",
    doi = "10.1103/RevModPhys.20.353",
    volume = "20"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrmp48,
    title = "Cosmic-ray effects from solar flares and magnetic storms",
    journal = "Reviews of Modern Physics",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHrmp48",
    id = "record",
    issn = "0034-6861",
    doi = "10.1103/RevModPhys.20.350",
    volume = "20"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:20140731-163157405,
    title = "Recent Studies of the Cosmic-Ray Latitude Effect at High Altitudes",
    journal = "Reviews of Modern Physics",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20140731-163157405",
    id = "record",
    issn = "0034-6861",
    doi = "10.1103/RevModPhys.20.360",
    volume = "20"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr47,
    title = "Primary Cosmic-Ray Protons and the Atom-Annihilation Hypothesis",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr47",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.72.513",
    volume = "72"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr44,
    title = "Further Studies on the Origin of Cosmic Rays Helium Annihilation Rays and the Cause of Their Variability with Time",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr44",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.66.295",
    volume = "66"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr43,
    title = "Further tests of the atom-annihilation hypothesis as to the origin of the cosmic rays",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr43",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.63.234",
    volume = "63"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr42,
    title = "Results of a High Altitude Cosmic-Ray Survey Near the Magnetic Equator",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr42",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.61.407",
    volume = "61"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr42,
    title = "A hypothesis as to the origin of cosmic rays and its experimental testing in India and elsewhere",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr42",
    id = "record",
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    volume = "61"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr40b,
    title = "The mean lifetime of the mesotron from electroscope data",
    journal = "Physical Review",
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    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.58.766",
    volume = "58"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr40a,
    title = "An attempt to measure the latitude effect of extensive cosmic-ray showers",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr40a",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.58.665",
    volume = "58"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr39a,
    title = "Seasonal cosmic-ray effects at sea level",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr39a",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.56.487",
    volume = "56"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr39b,
    title = "New evidence for a change with time of the total energy brought into the earth by cosmic rays",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr39b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.56.491",
    volume = "56"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILrmp39,
    title = "Seasonal cosmic-ray effects at sea level",
    journal = "Reviews of Modern Physics",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILrmp39",
    id = "record",
    issn = "0034-6861",
    doi = "10.1103/RevModPhys.11.166",
    volume = "11"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi39,
    title = "A High Speed Mechanical Recorder",
    journal = "Review of Scientific Instruments",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHrsi39",
    id = "record",
    issn = "0034-6748",
    doi = "10.1063/1.1751434",
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr38a,
    title = "New light on the nature and origin of the incoming cosmic rays",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr38a",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.53.855",
    volume = "53"
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    title = "Modified high speed Geiger counter circuit",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr38b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.53.316",
    volume = "53"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr38b,
    title = "New evidence as to the nature of the incoming cosmic rays, their absorbability in the atmosphere, and the secondary character of the penetrating rays found in such abundance at sea level and below",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr38b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.53.217",
    volume = "53"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr38a,
    title = "The latitude effect for cosmic-ray showers",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr38a",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.53.111",
    volume = "53"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr37b,
    title = "The influence of the Earth's magnetic field on cosmic-ray intensities up to the top of the atmosphere",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr37b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.52.80",
    volume = "52"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr36,
    title = "The latitude effect in cosmic rays at altitudes up to 29,000 feet",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr36",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.50.579",
    volume = "50"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr36,
    title = "A precision world survey of sea-level cosmic-ray intensities",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr36",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.50.15",
    volume = "50"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr36,
    title = "A high speed Geiger-counter circuit",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr36",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.49.940",
    volume = "49"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpnas35,
    title = "Equatorial longitude effects on cosmic rays",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpnas35",
    id = "record",
    issn = "0027-8424",
    doi = "10.1073/pnas.21.6.313",
    volume = "21"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr35,
    title = "The east-west and longitude effects",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr35",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.47.417",
    volume = "47"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr35,
    title = "The equatorial longitude effect in cosmic rays",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr35",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.47.205",
    volume = "47"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr34e,
    title = "A very high altitude survey of the effect of latitude upon cosmic-ray intensities - and an attempt at a general interpretation of cosmic-ray phenomena",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr34e",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.46.641",
    volume = "46"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:EVApr34,
    title = "The nature of statistical fluctuations with applications to cosmic rays",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:EVApr34",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.45.144",
    volume = "45"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:MILpr34,
    title = "The three types of cosmic-ray fluctuations and their significance",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MILpr34",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.45.141",
    volume = "45"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:BOWpr33b,
    title = "New high-altitude study of cosmic-ray bands and a new determination of their total energy content",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BOWpr33b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.44.246",
    volume = "44"
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    title = "Scattering of high velocity electrons by thin foils",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr31a",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.38.1321",
    volume = "38"
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@article{https://resolver.caltech.edu/CaltechAUTHORS:NEHpr31b,
    title = "Reflection of high velocity electrons from solid surfaces",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEHpr31b",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.37.655.2",
    volume = "37"
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