1. C.N. Hamelinck, A. P. C. Faaij, Universiteit Utrecht (2001)
2. Bio-methanol potential in Indonesia: Forest biomass as a source of bio-energy that reduces carbon emissions
3. E4tech, Final report, (2009)
4. IEA-HIA (private communication)
5. L. Bai, Y. Zhao, Y.Q. Hu, B. Zhong, S.Y. Peng, Journal of Natural Gas Chemistry, 5, 229–236 (1996)