1. Commission of the European Communities. Limiting global climate change to 2°C: the way ahead for 2020 and beyond. Brussels; 2007.
2. Audigane N, Bentele M, Ferreira JMF, Gyurik A. European pellet report 2012; 2012.
3. BAFA. Federal office for economic affairs and export control 2015. [accessed 12.05.15].
4. KfW Bankengruppe 2015. [accessed 12.05.15].
5. BAFA. Heizen mit nachwachsenden Rohstoffen 2015. [accessed 12.05.15].