TY  - RPRT
TI  - A dual-frequency electrical impedance tomography system.
AU  - H Griffiths
AU  - Z Zhang
PY  - 1989
DO  - 10.1088/0031-9155/34/10/009
UR  - https://pubmed.ncbi.nlm.nih.gov/2813513/
ID  - 2813513
ER  -