NARROW-BAND ULTRA-LOW CURRENT MEASUREMENTS WITH A RF SQUID F. Bordoni, P. Carelli, I. Modena et G. L. RomaniJ. Phys. Colloques, 39 C6 (1978) C6-1213-C6-1214DOI: https://doi.org/10.1051/jphyscol:19786536
