To cite package ‘ldbounds’ in publications use:

  Casper C, Cook T, ld98. OAPBoFp (2023). _ldbounds: Lan-DeMets Method
  for Group Sequential Boundaries_. R package version 2.0.2,
  <https://CRAN.R-project.org/package=ldbounds>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ldbounds: Lan-DeMets Method for Group Sequential Boundaries},
    author = {Charlie Casper and Thomas Cook and Oscar A. Perez. Based on FORTRAN program ld98.},
    year = {2023},
    note = {R package version 2.0.2},
    url = {https://CRAN.R-project.org/package=ldbounds},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.