Market sectors
, , , and . "Demand Response Providing Ancillary Services A Comparison of Opportunities and Challenges in the US Wholesale Markets." Grid-Interop 2012. Irving, TX, 2012.
, , , , , , , , , and . Pacific Gas & Electric Company 2007 Auto-DR Program: Task 13 Deliverable: Auto-DR Assessment Study. PG&E, 2008.