1. Take a closer look: biofuels can support environmental, economic and social goals;Dale;Environ Sci Technol,2014
2. Biorefinery systems-potential contributors to sustainable innovation;Wellisch;Biofuels Bioprod Biorefin,2010
3. Best practices for biofuels;Youngs;Science,2014
4. The Global Bioenergy Partnership (GBEP). The global bioenergy partnership sustainability indicators for bioenergy. GBEP secretariat, FAO, environment, climate change and bioenergy division. Rome, Italy; 2011. Also available at: 〈ftp://ext-ftp.fao.org/nr/data/nrc/gbep/Report%2016%20December.pdf〉. [Last accessed 16.12.14].
5. REN21. Renewable energy policy network for the 21st Century. United Nations environment program, Paris, France; 2014. Available at: 〈http://www/ren21/net〉. [Last accessed 31.12.14].