@misc{assurances-sociales-etat-social-et-securite-sociale,
  title   = {Principes fondamentaux et concepts},
  author  = {Leimgruber, Matthieu},
  year    = {2016},
  month   = {jun},
  url     = {https://www.histoiredelasecuritesociale.ch/articles/themes/grundlagen-und-konzepte/assurances-sociales-etat-social-et-securite-sociale}
}