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Important hydrogen production review article: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757257/
Another review article: http://www.sciencedirect.com.ezproxyberklee.flo.org/science/article/pii/S0167779909000572
Overview of thermophilic hydrogen producing microorganisms (continued from Kengen et al. 2009)
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