1. The intelligent workplace retrofit initiative;Hartkopf,1994
2. Solar energy handbook;Ametek,1985
3. Lundsager P, Integration of renewable energy into local and regional power supply, In: The World Renewable Energy Congress, Denver, 1996. p. 117–122.
4. Rockwell K, The big picture-building solar hot water system with conventional energy efficiency, In: Proceedings of the solar 99 conference, American Solar Energy Society (ASES), 1999. p. 281–4.
5. Archibald J, Building integrated solar thermal roofing systems history, current status, and future promise. In: Proceedings of the solar 99 conference, Vol. 2, American Solar Energy Society (ASES), 1999. p. 95–100.