@article{impactofcovid19onthetradeofgoodsand,
  title = {Impact of COVID-19 on the trade of goods and services in Spain},
  author = {Asier Minondo},
  year = {2020},
  eprint = {2012.01903},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2012.01903v1},
}