@other{https://resolver.caltech.edu/CaltechETD:etd-05082009-143935,
    title = "Retrieval of Soil Moisture under Vegetation Using Polarimetric Radar",
    url = "https://resolver.caltech.edu/CaltechETD:etd-05082009-143935",
    id = "record",
    doi = "10.7907/SKJ9-KT40"
}