@article{perlin2020,
  title = {A GARCH Tutorial with R},
  author = {Marcelo S. Perlin, Mauro Mastella, Daniel Vancin, Henrique P. Ramos},
  journal = {Revista de Administração Contemporânea},
  year = {2020},
  doi = {10.1590/1982-7849rac2021200088},
  issn = {1982-7849},
  url = {https://doi.org/10.1590/1982-7849rac2021200088}
}