@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20120508-133503684,
    chapter = "Aperture efficiency of chemically etched horns at 93 GHz",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120508-133503684",
    id = "record",
    doi = "10.1109/APS.1990.115381"
}