@article{porto_henriques_fett-neto_2009, 
  title={Bioactive Alkaloids from South American Psychotria and Related Species}, 
  DOI={10.2174/1874847300902010029}, 
  publisher={Bentham Science Publishers Ltd.}, 
  author={Porto and Henriques and Fett-Neto}, 
  year={2009}, 
  month={Sep}
  }