@article{vieira_alberto_martins_moreira_2014, 
  title={O hedge faz sentido econômico para a American Airlines?}, 
  volume={11}, 
  DOI={10.5007/2175-8069.2014v11n23p141}, 
  number={23}, 
  publisher={Universidade Federal de Santa Catarina (UFSC)}, 
  author={Vieira and Alberto and Martins and Moreira}, 
  year={2014}, 
  month={Aug}
  }