1. World energy outlook 2017;International Energy Agency (IEA),2017
2. Global Energy & CO2 Status Report: the latest trends in energy and emissions in 2017;International Energy Agency (IEA),2018
3. Key world energy statistics;International Energy Agency (IEA),2017
4. Avanzando en la Transición Mundial hacia la Energía Renovable;Renewable Energy Policy Network for the 21st Century (REN21),2017