@book{https://authors.library.caltech.edu/records/n0r0w-w0t64,
    author = "Engheta, N. and Papas, C. H. and Elachi, C.",
    title = "On the polarization properties of the far-zone radiation fields of primary and secondary electromagnetic sources",
    year = "1984",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170726-174923692",
    id = "https://authors.library.caltech.edu/records/n0r0w-w0t64",
    doi = "10.1109/APS.1984.1149190"
}


@book{https://authors.library.caltech.edu/records/f79jp-3we27,
    author = "Mo, Tse Chin and Papas, C. H. and Baum, Carl E.",
    title = "Differential-geometry scaling method for electromagnetic field and its applications to coaxial waveguide junctions",
    year = "1973",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170809-172052975",
    id = "https://authors.library.caltech.edu/records/f79jp-3we27",
    doi = "10.1109/APS.1973.1147129"
}