@other{https://resolver.caltech.edu/CaltechTHESIS:06072018-133402239,
    title = "Analysis of Flapping Propulsion: Comparison, Characterization, and Optimization",
    url = "https://resolver.caltech.edu/CaltechTHESIS:06072018-133402239",
    id = "record",
    doi = "10.7907/Q6CG-QY57"
}