TY  - RPRT
TI  - Time changes of contrast thresholds during automatic perimetry.
AU  - A Heijl
PY  - 1977
DO  - 10.1111/j.1755-3768.1977.tb05668.x
UR  - https://pubmed.ncbi.nlm.nih.gov/578374/
ID  - 578374
ER  -