To cite package ‘sccic’ in publications use:

  Hwang N (2026). _sccic: Synthetic Control Changes-in-Changes
  Estimator_. R package version 0.1.0,
  <https://github.com/neilhwang/sccic>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sccic: Synthetic Control Changes-in-Changes Estimator},
    author = {Neil Hwang},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/neilhwang/sccic},
  }