@article {DiPietro2013,
	title = {Observation of Dirac plasmons in a topological insulator},
	journal = {Nature Nanotechnology},
	volume = {8},
	number = {8},
	year = {2013},
	month = {aug},
	pages = {556–560},
	doi = {10.1038/NNANO.2013.134},
	author = {Di Pietro, P. and Ortolani, M. and Limaj, O. and Di Gaspare, A. and Giliberti, V. and Giorgianni, F. and Brahlek, M. and Bansal, N. and Koirala, N. and Oh, S. and Calvani, P. and Lupi, S.}
}
