TY  - RPRT
TI  - Active magnetic shielding for biomagnetic measurement using spatial gradient fields.
AU  - B Hilgenfeld
AU  - E Strähmel
AU  - H Nowak
AU  - J Haueisen
PY  - 2003
DO  - 10.1088/0967-3334/24/3/303
UR  - https://pubmed.ncbi.nlm.nih.gov/14509304/
ID  - 14509304
ER  -