mmissioning: A Meta-Analysis of Existing Buildings and New Construction in the United States http:Thetd.lbl.goviemills/PUBS/Cx-Costs-Benefits.html Oregon Office of Energy, Commissioning for Better Buildings in Oregon http://egov.oregon.go_WENERGY/CONS/BUS/commfbldgoc.shtml This website and document of the same name contain a comprehensive introduction