TY  - RPRT
TI  - Variability of the human visual evoked potential: normative data.
AU  - L Cigánek
PY  - 1969
DO  - 10.1016/0013-4694(69)90106-0
UR  - https://pubmed.ncbi.nlm.nih.gov/4182888/
ID  - 4182888
ER  -