1. Dutch Biological Hydrogen Foundation. Reith JH, Wijffels RH, Barten H. editors. Biomethane and biohydrogen: status and perspectives of biological methane and hydrogen production. 2003. p. 103–123 [ISBN: 90-9017167-7].
2. Claassen PAM, Budde MAW, van Noorden GE, Hoekema S, Hazewinkel JHO, van Groenestijn JW, et al. Biological hydrogen production from agro-fodder by-products”. In: Oral presentation at total fodder 2004. Norwich, UK; 25–28 April 2004.
3. ISO 14044: Environmental management. Life cycle assessment—requirement and guidelines. International Organization for Standardization, 2006.
4. Ecoinvent Data v1.1: from heterogenous databases to unified and transparent LCI data;Frischknecht;Int J Life Cycle Assesment,2005
5. IMPACT 2002+: a new life cycle impact assessment method;Jolliet;Int J Life cycle Assesment,2003