Magnetometers based on (double) relaxation oscillation SQUIDs M. J. van Duuren, Y. H. Lee, D. J. Adelerhof, J. Flokstra et H. RogallaJ. Phys. IV France, 04 C6 (1994) C6-255-C6-260DOI: https://doi.org/10.1051/jp4:1994641
