TY - JOUR AU - R. Welty AU - John Martinis C2 - IEEE Transactions on Applied Superconductivity DA - 1993-03-01 00:03:00 LA - en M1 - 3 PB - IEEE Transactions on Applied Superconductivity PY - 1993 TI - Two-Stage Integrated SQUID Amplifier with Series Array Output ER -