1. G.W. Crabtree, M.S. Dresselhaus, M.V. Buchanan, Phys. Today 57(12), 39 (2004)
2. P.P. Edwards, V.L. Kuznetsov, W.I.F. David, ed. by F. Armstrong, K. Blundell (Oxford University Press, Oxford, 2007), p. 156
3. M.S. Dresselhaus, Mater. Issues Hydrogen Econ. 3 (2009)
4. J. Kilner, P.P. Edwards, V. Kuznetsov, Mater. World 17(7), 36 (2009)
5. S. Young, Nature 414(6863), 487 (2001)