To cite package ‘mpspline2’ in publications use:

O'Brien L (2025). mpspline2: Mass-Preserving Spline Functions for Soil Data. R package version 0.1.9, https://github.com/obrl-soil/mpspline2.

Corresponding BibTeX entry:

  @Manual{,
    title = {mpspline2: Mass-Preserving Spline Functions for Soil
      Data},
    author = {Lauren O'Brien},
    year = {2025},
    note = {R package version 0.1.9},
    url = {https://github.com/obrl-soil/mpspline2},
  }