@article{https://resolver.caltech.edu/CaltechAUTHORS:HUEjmp75,
    title = "A superposition principle for Siegert resonant states",
    journal = "Journal of Mathematical Physics",
    year = "1975",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:HUEjmp75",
    id = "record",
    issn = "0022-2488",
    doi = "10.1063/1.522449",
    volume = "16"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:20200221-112529321,
    title = "Group theoretical selection rules for electron-impact spectroscopy",
    journal = "Chemical Physics Letters",
    year = "1971",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20200221-112529321",
    id = "record",
    issn = "0009-2614",
    doi = "10.1016/0009-2614(71)80499-2",
    volume = "11"
}