TY  - RPRT
TI  - [Unipolar lead with variable indifferent electrode in electroencephalography].
AU  - F DUENSING
PY  - 1951
DO  - 10.1007/bf00343007
UR  - https://pubmed.ncbi.nlm.nih.gov/14904027/
ID  - 14904027
ER  -