@misc{dgi-maria-fierz,
  title   = {{Maria Fierz}},
  author  = {Stüdli, Beat},
  year    = {2026},
  month   = {jun},
  url     = {https://www.historyofsocialsecurity.ch/articles/oik-stakeholders/uir-history-of-social-security-scientific-research-and-experts/dgi-maria-fierz}
}