@misc{ahv-the-cornerstone-of-social-security,
  title   = {AHV: The Cornerstone of Social Security},
  author  = {Germann, Urs and Stüdli, Beat},
  year    = {2015},
  month   = {jun},
  url     = {https://www.historyofsocialsecurity.ch/timeline/expansion-and-consolidation-of-the-welfare-state/ahv-the-cornerstone-of-social-security}
}