To cite package ‘esback’ in publications use:

  Bayer S, Dimitriadis T (2023). _esback: Expected Shortfall
  Backtesting_. R package version 0.3.1,
  <https://github.com/bayerse/esback>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {esback: Expected Shortfall Backtesting},
    author = {Sebastian Bayer and Timo Dimitriadis},
    year = {2023},
    note = {R package version 0.3.1},
    url = {https://github.com/bayerse/esback},
  }