TY - JOUR AU - Richards, P. AU - Shen, T. AU - Harris, Richard AU - Lloyd, F. 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 -