@misc{bdw-mutualite-subsidiarite-et-solidarite,
  title   = {{Modèles de solidarité de la sécurité sociale}},
  author  = {},
  year    = {},
  month   = {},
  url     = {https://www.histoiredelasecuritesociale.ch/artikel/uqm-themes/bdw-mutualite-subsidiarite-et-solidarite}
}