TY  - RPRT
TI  - On knowing which way to trace: direction errors during visual curve tracing.
AU  - P A McCormick
PY  - 1995
DO  - 10.1037/1196-1961.49.4.549
UR  - https://pubmed.ncbi.nlm.nih.gov/9183992/
ID  - 9183992
ER  -