@other{https://resolver.caltech.edu/CaltechKHR:KH-R-3,
    title = "Further laboratory studies of the roughness and suspended load of alluvial streams",
    year = "1961",
    url = "https://resolver.caltech.edu/CaltechKHR:KH-R-3",
    id = "record",
    doi = "10.7907/Z9086382"
}


@other{https://resolver.caltech.edu/CaltechKHR:KH-R-1,
    title = "Lecture notes on sediment transportation and channel stability",
    year = "1961",
    url = "https://resolver.caltech.edu/CaltechKHR:KH-R-1",
    id = "record",
    doi = "10.7907/Z9VH5KSC"
}


@other{https://resolver.caltech.edu/CaltechKHR:KH-R-2,
    title = "Stationary waves and antidunes in alluvial channels",
    year = "1961",
    url = "https://resolver.caltech.edu/CaltechKHR:KH-R-2",
    id = "record",
    doi = "10.7907/Z9QR4V22"
}