参考文章(3)
J. O. Dalenbäck, Take off for Solar District Heating in Europe Polska Energetyka Słoneczna. pp. 9- 13 ,(2009)
Y. Tripanagnostopoulos, M. Souliotis, S. A. Kalogirou, Thermosiphonic hybrid PV/T solar systems Polska Energetyka Słoneczna. pp. 28- 31 ,(2009)
Kjeld Johnsen, IEA solar heating & cooling programme. 1999 annual report International Energy Agency, IEA. ,(1999)