TY  - RPRT
TI  - Color versus numeric coding in a keeping-track task: performance under varying load conditions.
AU  - J Wedell
AU  - D G Alden
PY  - 1973
DO  - 10.1037/h0037129
UR  - https://pubmed.ncbi.nlm.nih.gov/4784759/
ID  - 4784759
ER  -