@other{https://resolver.caltech.edu/CaltechAUTHORS:20180201-142551090,
    title = "Refinements in Bubble Density Measurement",
    year = "2018",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180201-142551090",
    id = "record",
    doi = "10.7907/Z9ST7N1K"
}