@article{blochwitz_pfeiffer_fritz_leo_1998, 
  title={Low voltage organic light emitting diodes featuring doped phthalocyanine as hole transport material}, 
  volume={73}, 
  DOI={10.1063/1.121982}, 
  publisher={AIP Publishing}, 
  author={Blochwitz and Pfeiffer and Fritz and Leo}, 
  year={1998}, 
  month={Aug}
  }