@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20101006-081907422,
    title = "Spaceflight Mechanics 2010",
    chapter = "Titan Trajectory Design Using Invariant Manifolds and Resonant Gravity Assists",
    year = "2010",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101006-081907422",
    id = "record",
    isbn = "9780877035602"
}


@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20100621-085406635,
    title = "Spaceflight mechanics 2009",
    chapter = "Invariant manifolds, discrete mechanics, and trajectory design for a mission to Titan",
    year = "2009",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20100621-085406635",
    id = "record",
    isbn = "978-0-87703-554-1"
}