TY  - RPRT
TI  - Constant-brightness surfaces generated by several color-difference formulas.
AU  - E J Muth
AU  - C G Persels
PY  - 1971
DO  - 10.1364/josa.61.001152
UR  - https://pubmed.ncbi.nlm.nih.gov/5121884/
ID  - 5121884
ER  -