1. World Energy Council (WEC), World Energy Resources, London, 2016.
2. Coal Information 2017;International Energy Agency (IEA),2017
3. CO2 Emissions from Fuel Combustion 2017;International Energy Agency (IEA),2017
4. Clean Coal Technologies. Accelerating Commercial and Policy Drivers for Deployment;International Energy Agency (IEA),2008
5. National Energy Technology Laboratory (NETL), Cost and Performance Baseline for Fossil Energy Plants Volume 1a: Bituminous Coal (PC) and Natural Gas to Electricity, Report number DOE/NETL-2015/1723, July 2015.