@misc{supplementary-benefits-el,
  title   = {Supplementary Benefits (EL)},
  author  = {Stüdli, Beat and Zahn, Anina},
  year    = {2020},
  month   = {jun},
  url     = {https://www.historyofsocialsecurity.ch/articles/institutions/history-of-social-security-administering-social-security/supplementary-benefits-el}
}