TY - JOUR AU - P. Richards AU - T. Shen AU - Richard Harris AU - F. Lloyd C2 - Applied Physics Letters DA - 1979-12-31 00:12:00 LA - en M1 - 34 PB - Applied Physics Letters PY - 1979 TI - Quasiparticle Heterodyne Mixing in SIS Tunnel Junctions ER -