@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20181211-080024412, title = "XIXth General Assembly of the IAU", chapter = "Reference Frame Studies at JPL/Caltech", year = "1986", url = "https://resolver.caltech.edu/CaltechAUTHORS:20181211-080024412", id = "record", isbn = "9789027722782", doi = "10.1017/S1539299600006274" }