@article{aufsatz2278,
    affiliation = {Professur für Optoelektronik},
    title = {Formation of solid state excitons in ultrathin crystalline films of PTCDA: From single molecules to molecular stacks},
    journal = {Phys. Rev. Lett.},
    pages = {97403},
    year = {2004},
    peerreview = {Nein},
    volume = {93},
    author = {Pröhl, H. and Nitsche, R. and Dienel, T. and Fritz, T.}
}