1. Geothermal energy;DiPippo;Electricity generation and environmental impact. Energy Policy Oct.,,1991
2. Hunt, T., 2001. Five Lectures on Environmental Effects of Geothermal Energy Utilization. United Nations University Geothermal Training Programme 2000, Report 1, Reykjavik, Iceland, 109 pp., ISBN-99-68-070-9.
3. Environmental considerations;Lunis,1989
4. Mégel, T., Rybach, L., 2000. Production capacity and sustainability of geothermal doublets. Proceedings World Geothermal Congress, Japan, 2, pp. 849–854.
5. Modelling post-abandonment electrical capacity recovery for a two-phase geothermal reservoir;Pritchett;Geothermal Resources Council Transactions,1998