To cite package ‘nvctr’ in publications use:

Spinielli E (2025). nvctr: The n-vector Approach to Geographical Position Calculations using an Ellipsoidal Model of Earth. R package version 0.1.7, https://github.com/euctrl-pru/nvctr.

Corresponding BibTeX entry:

  @Manual{,
    title = {nvctr: The n-vector Approach to Geographical Position
      Calculations using an Ellipsoidal Model of Earth},
    author = {Enrico Spinielli},
    year = {2025},
    note = {R package version 0.1.7},
    url = {https://github.com/euctrl-pru/nvctr},
  }