TY  - RPRT
TI  - A low-cost light-emitting diode photic stimulator.
AU  - J D Spydell
PY  - 1983
DO  - 10.1016/0013-4694(83)90136-0
UR  - https://pubmed.ncbi.nlm.nih.gov/6187541/
ID  - 6187541
ER  -