National statistical institute, Bulgaria

Bulgaria National Statistical Institute. 2021. Population and housing census. https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=338 (Last accessed 2023-12-11).

@online{
  author            = {Bulgaria National Statistical Institute},
  title             = {Population and housing census},
  url               = {https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=338},
  urldate           = {2023-12-11},
  year              = {2021}
}