TY  - RPRT
TI  - Methods of visual acuity determination with the spatial frequency sweep visual evoked potential.
AU  - William H Ridder
PY  - 2004
DO  - 10.1007/s10633-004-8053-7
UR  - https://pubmed.ncbi.nlm.nih.gov/15957609/
ID  - 15957609
ER  -