@other{https://resolver.caltech.edu/CaltechAUTHORS:20190214-102139841,
    title = "Future Missions to Titan: Scientific and Engineering Challenges",
    year = "2011",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20190214-102139841",
    id = "record",
    doi = "10.26206/5VKW-9021"
}