Wiley, P.E., J.E. Campbell, and B. McKuin. 2011. Production of biodiesel and biogas from algae: A review of process train options. Water Environment Research 83(4):326-338.
Williams, E., Weber, C., and Hawkins, T. 2009. Hybrid approach to managing uncertainty in life cycle inventories. Journal of Industrial Ecology 15(6):928-944.
Williams, P.J.L.B., and L.M.L. Laurens. 2010. Microalgae as biodiesel and biomass feedstocks: Review and analysis of the biochemistry, energetics and economics. Energy and Environmental Science 3(5):554-590.
Wu, M., M. Mintz, M. Wang, and S. Arora. 2009. Water consumption in the production of ethanol and petroleum gasoline. Environmental Management 44(5):981-997.
Xu, L., D.W.F.W. Brilman, J.A.M. Withag, G. Brem, and S. Kersten. 2011. Assessment of a dry and a wet route for the production of biofuels from microalgae: Energy balance analysis. Bioresource Technology 201:5113-5122.
Yang, J., M. Xu, X. Zhang, Q. Hu, M. Sommerfeld, and Y. Chen. 2011. Life-cycle analysis on biodiesel production from microalgae: Water footprint and nutrients balance. Bioresource Technology 102(1):159-165.
Yue, L., and W. Chen. 2005. Isolation and determination of cultural characteristics of a new highly CO2 tolerant fresh water microalgae. Energy Conversion and Management 46(11-12):1868-1876.