Crassee, I., Orlita, M., Potemski, M., Walter, A. L., Ostler, M., Seyller, T., et al. (2012). Intrinsic Terahertz Plasmons and Magnetoplasmons in Large Scale Monolayer Graphene. Nano Letters, 12(5), 2470-2474. doi:10.1021/nl300572y.