To cite soiltillr in publications use:

  Islam S (2026). _soiltillr: Analyse Soil Tillage Depth and Erosion
  Over Time_. R package version 0.1.0.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {soiltillr: Analyse Soil Tillage Depth and Erosion Over Time},
    author = {Sadikul Islam},
    year = {2026},
    note = {R package version 0.1.0},
  }