To cite spsur in publications use:

Lopez, F.; Minguez, R. and Mur, J. (2020). ML versus IV estimates of spatial SUR models: evidence from the case of Airbnb in Madrid urban area. The Annals of Regional Science, 64(2), 313-347. URL https://link.springer.com/article/10.1007/s00168-019-00914-1

Minguez, R.; Lopez, F. and Mur, J. (forthcoming). spsur: an R package for dealing with spatial seemingly unrelated regression models. Journal of Statistical Software. URL https://github.com/rominsal/spsur/tree/master/vignettes

Corresponding BibTeX entries:

  @Article{,
    title = {ML versus IV estimates of spatial SUR models: evidence
      from the case of Airbnb in Madrid urban area},
    author = {Fernando Lopez and Roman Minguez and Jesus Mur},
    journal = {The Annals of Regional Science},
    volume = {64},
    number = {2},
    pages = {313--347},
    year = {2020},
    publisher = {Springer},
    doi = {10.1007/s00168-019-00914-1},
    url =
      {https://link.springer.com/article/10.1007/s00168-019-00914-1},
  }

  @Article{,
    title = {spsur: an R package for dealing with spatial seemingly
      unrelated regression models},
    author = {Roman Minguez and Fernando Lopez and Jesus Mur},
    journal = {Journal of Statistical Software},
    year = {forthcoming},
    url = {https://github.com/rominsal/spsur/tree/master/vignettes},
  }