@other{https://resolver.caltech.edu/CaltechAUTHORS:20150909-165633420,
    title = "Techniques for characterizing cloud condensation nuclel",
    year = "2003",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150909-165633420",
    id = "record"
}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20150909-165400861,
    title = "Cloud condensation nucleus spectrometer",
    year = "2001",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150909-165400861",
    id = "record"
}