To cite package ‘rma.exact’ in publications use:

Michael H, Tian L (2017). rma.exact: Exact Confidence Intervals for Random Effects Meta-Analyses. R package version 0.1.0, https://CRAN.R-project.org/package=rma.exact.

Corresponding BibTeX entry:

  @Manual{,
    title = {rma.exact: Exact Confidence Intervals for Random Effects
      Meta-Analyses},
    author = {Haben Michael and Lu Tian},
    year = {2017},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=rma.exact},
  }