TY  - RPRT
TI  - A camera-lucida procedure for low-contrast material.
AU  - A Forer
PY  - 1968
DO  - 10.1111/j.1365-2818.1968.tb00642.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5726940/
ID  - 5726940
ER  -