Impact of molecular quadrupole moments on the energy levels at organic heterojunctions oleh Martin Schwarze, Karl Sebastian Schellhammer, Katrin Ortstein, Johannes Benduhn, Christopher Gaul, Alexander Hinderhofer, Lorena Perdigón Toro, Reinhard Scholz, Jonas Kublitski, Steffen Roland, Matthias Lau, Carl Poelking, Denis Andrienko, Gianaurelio Cuniberti, Frank Schreiber, Dieter Neher, Koen Vandewal, Frank Ortmann, Karl Leo