To cite package ‘ncpen’ in publications use:

Kim D, Kwon S, Lee S (2026). ncpen: Unified Algorithm for Non-Convex Penalized Estimation for Generalized Linear Models. R package version 1.0.1, https://github.com/zeemkr/ncpen.

Corresponding BibTeX entry:

  @Manual{,
    title = {ncpen: Unified Algorithm for Non-Convex Penalized
      Estimation for Generalized Linear Models},
    author = {Dongshin Kim and Sunghoon Kwon and Sangin Lee},
    year = {2026},
    note = {R package version 1.0.1},
    url = {https://github.com/zeemkr/ncpen},
  }