@conference{763501, author = {Donald McDonald and A. Risley and J. Cupp}, title = {The Relationship of Josephson Junctions to a Unified Standard of Length and Time}, year = {1974}, month = {1974-12-31 00:12:00}, publisher = {Proc., 13th Intl. Conf. Low Temperature Physics, Boulder, CO, USA}, language = {en}, }