Siddiqui, Afzal S, Chris Marnay, and Mark Khavkin. "Spot Pricing of Electricity and Ancillary Services in a Competitive California Market." Hawaii International Conference on System Sciences 2001: 10.PDF
Kiliccote, Sila, and Mary Ann Piette. Automation of Capacity Bidding with an Aggregator Using Open Automated Demand Response. CEC, 2008.PDF
Rubinstein, Francis M, Li Xiaolei, and David S Watson. Using Dimmable Lighting for Regulation Capacity and Non-Spinning Reserves in the Ancillary Services Market. A Feasibility Study. 2010.PDF