M.  Caputo, Panighel, M., Petaccia, L., Struzzi, C., Alijani, V., Coreno, M., de Simone, M., Fratesi, G., Di Santo, G., and Goldoni, A., ?Metallic picene/C60 heterojunctions and the effect of potassium doping?, Physical review. B, Condensed matter and materials physics (Online), vol. 90, p. 201401, 2014.