To cite the 'locits' package in publications use:

  Guy Nason (2025). locits: Tests of stationarity and localized
  autocovariance.R package version 1.7.8.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {locits: Tests of stationarity and localized autocovariance},
    author = {Guy Nason},
    year = {2025},
    note = {R package version 1.7.8},
  }

  Nason, G.P. (2013) A test for second-order stationarity and
  approximate confidence intervals for localized autocovariances for
  locally stationary time series. Journal of the Royal Statistical
  Society, Series B 75:879--904

A BibTeX entry for LaTeX users is

  @Article{,
    title = {A test for second-order stationarity and approximate confidence intervals for localized autocovariances for locally stationary time series},
    author = {{G. P. Nason}},
    journal = {Journal of the Royal Statistical Society, Series B},
    volume = {75},
    year = {2013},
    pages = {879--904},
    doi = {10.1111/rssb.12015},
  }