TY - JOUR AU - McDonald, Donald AU - Petersen, F. AU - Cupp, J. AU - Danielson, B. AU - Johnson, E. C2 - Applied Physics Letters DA - 1974-04-01 00:04:00 LA - en M1 - 24 PB - Applied Physics Letters PY - 1974 TI - Josephson Junctions at 45 Times the Energy-Gap Frequency ER -