@article{https://resolver.caltech.edu/CaltechAUTHORS:20120830-154129133,
    title = "Representing Imprecision in Engineering Design - Comparing Fuzzy and Probability Calculus",
    journal = "Research in Engineering Design",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120830-154129133",
    id = "record",
    issn = "0934-9839",
    doi = "10.1007/BF01581211",
    volume = "1"
}


@other{https://resolver.caltech.edu/CaltechAUTHORS:20101202-113823336,
    title = "The ballistic Mars hopper: An alternative Mars mobility concept",
    year = "1987",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20101202-113823336",
    id = "record"
}