1. Illuminating Engineering Society, LM-80-08 Standard- Approved Method for Measuring. Lumen Maintenance of Led Lighting Sources (IES, New York, 2008)
2. Illuminating Engineering Society, TM-21-11 Standard-Projecting Long Term Lumen Maintenance of LED Light Sources (IES, New York, 2011)
3. China Solid State Lighting Alliance, CSA-020 Standard-Accelerating Depreciation Test Method for Light Emitting Diode (LED) Lighting Products, (CSAS, Beijing, 2013)
4. M. Royer, R. Tuttle, S. Rosenfeld, N. Miller, Color Maintenance of LEDs in Laboratory and Field Applications, Gateway demonstrations, Prepared for Solid-State Lighting Program, (Wiley, New York, 2013)
5. J. Lynn Davis, K. Mills, M. Lamvik, R. Yaga, S.D. Shepherd, J. Bittle, N. Baldasaro, E. Solano, G. Bobashev, C. Johnson, A. Evans, System reliability for LED-based products, in 15th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, (EuroSimE, Belgium, 2014)