@conference{63366, author = {Judah Levine}, title = {Authenticating Time and Frequency Signals}, year = {1999}, month = {1999-01-01}, publisher = {IEEE Trans. Ultrasonics, Ferroelectrics, & Freq. Cont. , Besan{c-cedilla}on, FR}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105392}, language = {en}, }