1. U. Cubasch, D. Wuebbles, D. Chen, M. C. Facchini, D. Frame, N. Mahowald and J.-G. Winther, Introduction. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, T. F. Stocker, D. Qin, G.-K. Plattner, M. Tignor, S. K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P. M. Midgley (eds.), Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA (2013).
2. A. B. Rao and E. S. Rubin, Environ. Sci. Technol., 36, 4467 (2002).
3. D. Singh, E. Croiset, P. L. Douglas and M. A. Douglas, Energy Convers. Manag., 44, 3073 (2003).
4. M. YT. Le, S. Y. Lee and S. J. Park, Int. J. Hydrogen Energy, 39, 12340 (2014).
5. Y. Choe, K.-J. Oh, S.-S. Kim and S.-W Park, Korean J. Chem. Eng., 27, 962 (2010).