1. CIE 1987 International Lighting Vocabulary
2. CIE 1995 Method of measuring and specifying colour rendering properties of light sources
3. Jones , E.D. 2000 Inorganic Light Emitting Diodes for General Illumination. An Optoelectronics Industry Development Association Technology Roadmap
4. Jones , C.F. Ohno , Y. 1999 Proceedings of the CIE Symposium'99 - 75 Years of CIE Photometry, Budapest 173 177