@misc{parti-ecologiste-suisse-pes,
  title   = {Les VERT-E-S suisses (Parti écologiste suisses, PES)},
  author  = {Zahn, Anina},
  year    = {2026},
  month   = {jun},
  url     = {https://www.histoiredelasecuritesociale.ch/articles/les-institutions/histoire-de-la-securite-sociale-partis-politiques/parti-ecologiste-suisse-pes}
}