Resonance Raman excitation and electronic structure of the single bonded dimers (C and (C59N)2W. Plank, T. Pichler, H. Kuzmany, O. Dubay, N. Tagmatarchis and K. PrassidesEur. Phys. J. B, 17 1 (2000) 33-42DOI: https://doi.org/10.1007/s100510070157