E.Nakada, S.Nishikat, Y.Asada, J.Miyake (1999) Photosynthetic Bacterial Hydrogen Production Combined with a Fuel Cell.International Journal of Hydrogen Energy. 24: 1053-1057.

• 用光合细菌直接生产的氢气或以木材、厨馀、废水等酦酵所生产的沼气、甲醇、酒精等来产生能量。