1. Bioenergy Europe Statistical Report 2020,2020
2. Bioenergy Europe Statistical Report 2021,2021
3. Bioenergy Europe Statistical Report 2022,2022
4. Informe estadístico sobre producción y consumo de pellets en España,2022
5. Solid Biofuels. Fuel Specifications and Classes. Part 2: Graded Wood Pellets,2021