TY  - RPRT
TI  - Automatic calculation of color differences.
AU  - A OPLER
AU  - R W MEIKLE
AU  - M J CHARLESWORTH
PY  - 1953
DO  - 10.1364/josa.43.000550
UR  - https://pubmed.ncbi.nlm.nih.gov/13070119/
ID  - 13070119
ER  -