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http://www.sciencedirect.com.ezproxyberklee.flo.org/science/article/pii/S0360319908003844
Phototrophic hydrogen production from glucose by pure and co-cultures of Clostridium butyricum and Rhodobacter sphaeroides
http://www.sciencedirect.com.ezproxyberklee.flo.org/science/article/pii/S0360319906001170