visual performance criteria 
| Title |
Date |
Author |
|---|---|---|
| Measurement of the Contrast Rendition Factor for Pencil Handwritten Tasks | Apr 01, 1970 | H. Richard Blackwell |
| Title |
Date |
Author |
|---|---|---|
| Measurement of the Contrast Rendition Factor for Pencil Handwritten Tasks | Apr 01, 1970 | H. Richard Blackwell |