TY  - RPRT
TI  - Target structure and visual distance.
AU  - S H Bartley
AU  - R W Winters
PY  - 1968
DO  - 10.1080/00223980.1968.10544958
UR  - https://pubmed.ncbi.nlm.nih.gov/5727455/
ID  - 5727455
ER  -