@article{nonparametrictestforvolatilityin,
  title = {Nonparametric Test for Volatility in Clustered Multiple Time Series},
  author = {Erniel B. Barrios and Paolo Victor T. Redondo},
  year = {2021},
  eprint = {2104.14412},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2104.14412v3},
}