@article{https://resolver.caltech.edu/CaltechAUTHORS:ECHprd91,
    title = "Billiard balls in wormhole spacetimes with closed timelike curves: Classical theory",
    journal = "Physical Review D",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:ECHprd91",
    id = "record",
    issn = "2470-0010",
    doi = "10.1103/PhysRevD.44.1077",
    volume = "44"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:FRIprd90,
    title = "Cauchy problem in spacetimes with closed timelike curves",
    journal = "Physical Review D",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:FRIprd90",
    id = "record",
    issn = "2470-0010",
    doi = "10.1103/PhysRevD.42.1915",
    volume = "42"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:ECHprd89,
    title = "Gravitational-wave measurements of the mass and angular momentum of a black hole",
    journal = "Physical Review D",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:ECHprd89",
    id = "record",
    issn = "2470-0010",
    doi = "10.1103/PhysRevD.40.3194",
    volume = "40"
}