[1] K. S. Novoselov, A. K. G., S. V. Morozov, D. Jiang, and Y. Zhang, S. V. D., I. V. Grigorieva, A. A. Firsov, "Electric Field Effect in Atomically Thin Carbon Films," Science, vol. 306, no. 5696, 2004.
[3] Novoselov, K. S., Fal'ko, V. I., Colombo, L., Gellert, P. R., Schwab, M. G. and Kim, K., "A roadmap for graphene," Nature, vol. 490, no. 7419, pp. 192-200, 2012.
[5] Bolotin, K. I., Sikes, K. J., Jiang, Z., Klima, M., Fudenberg, G., Hone, J., Kim, P. and Stormer, H. L., "Ultrahigh electron mobility in suspended graphene," Solid State Communications, vol. 146, no. 9-10, pp. 351-355, 2008.