To cite the bild package in publications use:

Gonçalves MH, Azzalini A (2008). “Using Markov Chains for Marginal Modelling of Binary Longitudinal Data in an Exact Likelihood Approach.” Metron, LXVI(2), 157–181.

Gonçalves MH, Cabral MS, Azzalini A (2012). “The R Package bild for the Analysis of Binary Longitudinal Data.” Journal of Statistical Software, 46(9), 1–17. http://www.jstatsoft.org/v46/i09/.

Gonçalves MH, Cabral MS, Azzalini A (2020). bild: A Package for BInary Longitudinal Data. Version 1.2-0, https://CRAN.R-project.org/package=bild.

Corresponding BibTeX entries:

  @Article{,
    title = {Using {M}arkov Chains for Marginal Modelling of Binary
      Longitudinal Data in an Exact Likelihood Approach},
    author = {M. Helena Gon\c{c}alves and Adelchi Azzalini},
    year = {2008},
    journal = {Metron},
    volume = {LXVI},
    number = {2},
    pages = {157--181},
  }

  @Article{,
    title = {The {R} Package {bild} for the Analysis of Binary
      Longitudinal Data},
    author = {M. Helena Gon\c{c}alves and M. Salom\'{e} Cabral and
      Adelchi Azzalini},
    journal = {Journal of Statistical Software},
    year = {2012},
    volume = {46},
    number = {9},
    pages = {1--17},
    url = {http://www.jstatsoft.org/v46/i09/},
  }

  @Manual{,
    title = {{bild}: A Package for {BI}nary {L}ongitudinal {D}ata},
    author = {M. Helena Gon\c{c}alves and M. Salom\'{e} Cabral and
      Adelchi Azzalini},
    year = {2020},
    note = {Version 1.2-0},
    url = {https://CRAN.R-project.org/package=bild},
  }