@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20130912-145816021,
    title = "Flow visualization VII",
    chapter = "Vortex ring generation due to the coalescence of a water drop at a free surface",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20130912-145816021",
    id = "record",
    isbn = "9781567000368"
}