TY - JOUR AU - Muhlfelder, B. AU - Beall, James AU - Cromar, M. AU - Ono, Ronald C2 - Applied Physics Letters DA - 1986-10-01 00:10:00 LA - en M1 - 49 PB - Applied Physics Letters PY - 1986 TI - Very Low Noise, Tightly Coupled, dc SQUID Amplifiers ER -