Behrangrad, M., Parsa-Moghaddam, M., Sheikh-El-Eslami, M. K. (2009). Energy Efficiency Trading, a New Tool for Long-Term Market Power Reduction in Restructured Environment. *Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran*, 7(2), 178-183.