1. Commercial Building Survey Report;PGE,1997
2. The State of Affairs – Packaged Cooling Equipment in California;Felts,2000
3. Assessment of the Commercial Building Stock in the Pacific Northwest;NEEA,2004
4. Small Commercial HVAC Pilot Program;NEEA,2004
5. Review of Recent Commercial Roof Top Unit Field Studies in the Pacific Northwest and California;Cowan,2004