1. Handbook—HVAC Applications;ASHRAE,2003
2. Ground heat exchanger temperature distribution analysis and experimental verification;Bi;Applied Thermal Engineering,2002
3. Solar and ground source heat-pump system;Bi;Applied Energy,2004
4. BP, 2008. BP Statistical Review of World Energy. 〈http://www.bp.com/productlanding.do?categoryId=6929&contentId=7044622〉.
5. Experimental research on high-performance backfill materials for ground heat exchangers;Chen;Heating Ventilating and Air Conditioning,2006