M.N. Nair, C. Mattioli, M. Cranney, J.P. Malval, F. Vonau, D. Aubel, J.L. Bubendorff, A. Gourdon and L. Simon, STM Studies of Self-Assembled Tetrathiafulvalene (TTF) Derivatives on Graphene: Influence of the Mode of Deposition, J. Phys. Chem. C, 2015, 119 (17), 9334.