Electron waves in chemically substituted grapheneN. M. R. Peres, F. D. Klironomos, S.-W. Tsai, J. R. Santos, J. M. B. Lopes dos Santos and A. H. Castro NetoEPL, 80 6 (2007) 67007DOI: https://doi.org/10.1209/0295-5075/80/67007