@article{covid19impactontheinternationaltrade,
  title = {COVID-19 impact on the international trade},
  author = {Célestin Coquidé and José Lages and Leonardo Ermann and Dima L. Shepelyansky},
  year = {2022},
  eprint = {2201.07737},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2201.07737v1},
}