TY  - RPRT
TI  - APPARENT RELATIVE MOVEMENT OF 'UNSHARP' AND 'SHARP' VISUAL PATTERNS.
AU  - F J VERHEIJEN
PY  - 1963
DO  - 10.1038/199160a0
UR  - https://pubmed.ncbi.nlm.nih.gov/14043186/
ID  - 14043186
ER  -