@article{https://resolver.caltech.edu/CaltechAUTHORS:NEUpr60,
    title = "Photoproduction of negative and positive pions from deuterium for photon energies 500 to 1000 Mev",
    journal = "Physical Review",
    year = "1960",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEUpr60",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.119.1726",
    volume = "119"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:NEUprl59,
    title = "Pi-/Pi+ ratio from deuterium in photoproduction at 500-1000 Mev",
    journal = "Physical Review Letters",
    year = "1959",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:NEUprl59",
    id = "record",
    issn = "0031-9007",
    doi = "10.1103/PhysRevLett.2.429",
    volume = "2"
}