To cite package ‘DDPstar’ in publications use:

  Rodriguez-Alvarez M, Inacio V (2025). _DDPstar: Density Regression
  via Dirichlet Process Mixtures of Normal Structured Additive
  Regression Models_. R package version 1.0-1,
  <https://CRAN.R-project.org/package=DDPstar>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {DDPstar: Density Regression via Dirichlet Process Mixtures of Normal
Structured Additive Regression Models},
    author = {Maria Xose Rodriguez-Alvarez and Vanda Inacio},
    year = {2025},
    note = {R package version 1.0-1},
    url = {https://CRAN.R-project.org/package=DDPstar},
  }