TY  - RPRT
TI  - A comparative study of shade-matching procedures.
AU  - W D Culpepper
PY  - 1970
DO  - 10.1016/0022-3913(70)90140-x
UR  - https://pubmed.ncbi.nlm.nih.gov/5269632/
ID  - 5269632
ER  -