Towards practical quantum-limited SQUlDs for a gravitational wave antenna J. Flokstra, E. Bartolomé, M.J. Van Duuren, G.C.S. Brons, D. Veldhuis et H. Rogalla J. Phys. IV France, 08 PR3 (1998) Pr3-229-Pr3-232 DOI: 10.1051/jp4:1998350