TY  - RPRT
TI  - An analysis of task difficulty using the visually degraded stimulus task.
AU  - K E Whitfield
AU  - J W Elias
AU  - G Dore
PY  - 1991
DO  - 10.2466/pms.1991.72.3.1047
UR  - https://pubmed.ncbi.nlm.nih.gov/1891305/
ID  - 1891305
ER  -