Low noise amplifier for an integrated SQUID electronics operating in liquid nitrogen J. Kunert, V. Zakosarenko, V. Schultze, H.-G. Meyer, F. Nitsche and H. Wenske J. Phys. IV France, 08 PR3 (1998) Pr3-205-Pr3-208 DOI: 10.1051/jp4:1998345