TY  - RPRT
TI  - A simple and effective low cost frequency modulation system for neurophysiological recording.
AU  - J Louvel
PY  - 1981
DO  - 10.1016/0013-4694(81)90012-2
UR  - https://pubmed.ncbi.nlm.nih.gov/6161797/
ID  - 6161797
ER  -