A versatile route to edge-specific modifications to pristine graphene by electrophilic aromatic substitution. by Shellard, PM, Srisubin, T, Hartmann, M, Butcher, J, Fei, F, Cox, H, McNamara, TP, McArdle, T, Shepherd, AM, Jacobs, RMJ, Waigh, TA, Flitsch, SL, Blanford, CF