A comparison of direct colorimetry of titanium pigments with their indirect colorimetry based on spectrophotometry and a standard observer
- 1 September 1949
- journal article
- Published by National Institute of Standards and Technology (NIST) in Journal of Research of the National Bureau of Standards
- Vol. 43 (3) , 227-35
- https://doi.org/10.6028/jres.043.025