1. J. P. Wikswo, and M. C. Leifer, Superconducting Magnetometry for Biomagnetic Measurements, “Near Zero: New Frontiers of Physics”, J. D. Fairbank, B. S. Deaver, C.M. F. Evenritt, and P. F. Michelson, ed., W. H. Freeman and Company, New York, 456 (1988).
2. M. Itoh, T. Mizusaki, T. Ohmi, M. Motomura, and A. Hirai, Measurements of Nyquist Spectra in Passive Electric Circuits by Using a SQUID, Jpn. J. Appl. phys. 25: 1097 (1986).
3. B. Cabrera, Near Zero magnetic Fields with Superconducting Shields, “Near Zero: New Frontiers of Physics“, J. D. Fairbank, B. S. Deaver, C.M. F. Evenritt, and P. F. Michelson, ed., W. H. Freeman and Company, New York, 312 (1988).
4. For example, I. Iguchi, H. Watanabe, Y. Kasaki, T. Mochiku, A. Sugishita, and E. Yamaka, Tunneling Spectroscopy of Y-Ba-Cu-O Compound, Jpn. J. Appl. phys. 26: L645 (1987).
5. M. Itoh, Applications of High T
c Superconductor to Magnetic Shielding, OYO BUTSURI (J. Jpn. Soci. Appl. Phys.) 60: 478 (1991).