1. Photobiological hydrogen production: photochemical efficiency and bioreactor design;Akkerman,2003
2. Biological hydrogen production by Rhodobacter capsulatus in solar tubular photo bioreactor;Boran;Journal of Cleaner Production,2010
3. Claassen, P.A.M., de Vrije, T., 2004. Biological Hydrogen Production – Final Report. ISBN 90-6754-753-0.
4. Biological hydrogen production from biomass by thermophilic bacteria;Claassen,2002
5. Dark hydrogen fermentations;de Vrije,2003