@other{https://resolver.caltech.edu/CaltechKHR:KH-R-21,
    title = "Effects of density differences on lateral mixing in open-channel flows",
    year = "1970",
    url = "https://resolver.caltech.edu/CaltechKHR:KH-R-21",
    id = "record",
    doi = "10.7907/Z9416V1V"
}