References
- Illuminating Engineering Society of North America. 2000. American Standard Practice for Roadway Lighting, ANSI/IESNA RP-8–2000. New York, NY. IESNA.
- Illuminating Engineering Society of North America. 1987. IES Guidelines for Unit Power Density (UPD) for New Roadway Lighting Installations, IESNA LEM-6–1987. New York, NY. IESNA.
- KeithD. 2000. Roadway Lighting Design for Optimization of UPD, STV and Uplight. J of the IESNA. 29(No. 2). pp. 15–23
- California Energy Commission. 1993. Advanced Lighting Guidelines. CEC Publication 400–93–014. Sacramento, CA. CEC.