1. United Nations Environment Programme,2014
2. United Nations Environment Programme,2012
3. United Nations, Department of Economic and Social Affairs, Population Division. World urbanization prospects: the 2014 revision, highlights. New York: United Nations; 2014.
4. Catalog of CHP technologies;Darrow,2015
5. A review of thermally activated cooling technologies for combined cooling, heating and power systems;Deng;Prog Energ Combust,2011