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If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]metanet.ch.

To cite the 'irtlink' package in publications use:

Engels O (2026). irtlink: IRT Linking and Linking Error Estimation Across Time Points and Groups. R package version 0.1.0, https://CRAN.R-project.org/package=irtlink.

Corresponding BibTeX entry: 

  @Manual{irtlink_0.1.0,
    title = {irtlink: IRT Linking and Linking Error Estimation Across
      Time Points and Groups},
    author = {Oskar Engels},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=irtlink},
  }

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.