To cite spatialreg in publications use one or more of the following as
appropriate:

  Bivand R, Millo G, Piras G (2021). “A Review of Software for Spatial
  Econometrics in R.” _Mathematics_, *9*(11). doi:10.3390/math9111276
  <https://doi.org/10.3390/math9111276>,
  <https://www.mdpi.com/2227-7390/9/11/1276>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {A Review of Software for Spatial Econometrics in {R}},
    author = {Roger Bivand and Giovanni Millo and Gianfranco Piras},
    journal = {Mathematics},
    year = {2021},
    volume = {9},
    number = {11},
    url = {https://www.mdpi.com/2227-7390/9/11/1276},
    doi = {10.3390/math9111276},
  }

  Bivand R, Piras G (2015). “Comparing Implementations of Estimation
  Methods for Spatial Econometrics.” _Journal of Statistical Software_,
  *63*(18), 1-36. doi:10.18637/jss.v063.i18
  <https://doi.org/10.18637/jss.v063.i18>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Comparing Implementations of Estimation Methods for Spatial Econometrics},
    author = {Roger Bivand and Gianfranco Piras},
    journal = {Journal of Statistical Software},
    year = {2015},
    volume = {63},
    number = {18},
    pages = {1--36},
    doi = {10.18637/jss.v063.i18},
  }

  Bivand R, Hauke J, Kossowski T (2013). “Computing the Jacobian in
  Gaussian spatial autoregressive models: An illustrated comparison of
  available methods.” _Geographical Analysis_, *45*(2), 150-179.
  doi:10.1111/gean.12008 <https://doi.org/10.1111/gean.12008>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Computing the Jacobian in Gaussian spatial autoregressive models: An illustrated comparison of available methods},
    author = {Roger Bivand and Jan Hauke and Tomasz Kossowski},
    journal = {Geographical Analysis},
    year = {2013},
    volume = {45},
    number = {2},
    pages = {150--179},
    doi = {10.1111/gean.12008},
  }

  Bivand R, Pebesma E, Gómez-Rubio V (2013). _Applied spatial data
  analysis with R, Second edition_. Springer, NY.
  <https://asdar-book.org/>.

A BibTeX entry for LaTeX users is

  @Book{,
    author = {Roger S. Bivand and Edzer Pebesma and Virgilio Gómez-Rubio},
    title = {Applied spatial data analysis with {R}, Second edition},
    year = {2013},
    publisher = {Springer, NY},
    url = {https://asdar-book.org/},
  }

  Pebesma E, Bivand R (2023). _Spatial Data Science With Applications
  in R_. Chapman & Hall. <https://r-spatial.org/book/>.

A BibTeX entry for LaTeX users is

  @Book{,
    author = {Edzer Pebesma and Roger S. Bivand},
    title = {Spatial Data Science With Applications in {R}},
    year = {2023},
    publisher = {Chapman & Hall},
    url = {https://r-spatial.org/book/},
  }