Friedlein, R., Crispin, X., Osikowicz, W., Braun, S., de Jong, M. P., Simpson, C. D., Watson, M. D., von Kieseritzky, F.,
Samori, P., Jönsson, S. K. M., Fahlman, M., Jäckel, F., Rabe, J. P., Hellberg, J., Müllen, K., & Salaneck, W. R. (2004). Surface-induced vertical alignment of self-assembled supramolecular columns of large
polycyclic aromatic hydrocarbons and porphyrins. Synthetic Metals, 147(1-3),
79-83. doi:10.1016/j.synthmet.2004.07.009.