To cite package ‘STFTS’ in publications use:

Chen Y, Pun C (2021). STFTS: Statistical Tests for Functional Time Series. R package version 0.1.0, https://CRAN.R-project.org/package=STFTS.

Corresponding BibTeX entry:

  @Manual{,
    title = {STFTS: Statistical Tests for Functional Time Series},
    author = {Yichao Chen and Chi Seng Pun},
    year = {2021},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=STFTS},
  }