@other{https://resolver.caltech.edu/CaltechAUTHORS:20140603-154739143, title = "Spectrum analysis of strong motion earthquakes", year = "2014", url = "https://resolver.caltech.edu/CaltechAUTHORS:20140603-154739143", id = "record" } @other{https://resolver.caltech.edu/CaltechAUTHORS:MILlberpt33, title = "Long Beach Earthquake and Protection Against Future Earthquakes -- Summary of Report by Joint Technical Committee on Earthquake Protection, Dr. Robert A. Millikan, Chairman", year = "2008", url = "https://resolver.caltech.edu/CaltechAUTHORS:MILlberpt33", id = "record" } @other{https://resolver.caltech.edu/CaltechEERL:1964.EERL.1964.001, title = "Spectrum analyses of strong-motion earthquakes", year = "1964", url = "https://resolver.caltech.edu/CaltechEERL:1964.EERL.1964.001", id = "record" }