@article{pschorr_karo_1906, 
  title={Darstellung und Hydrirung vonN-Methyl-β-naphtindol}, 
  volume={39}, 
  DOI={10.1002/cber.190603903130}, 
  publisher={Wiley}, 
  author={Pschorr and Karo}, 
  year={1906}
  }