@misc{ysn-ahv-the-cornerstone-of-social-security,
  title   = {{AHV: The Cornerstone of Social Security}},
  author  = {},
  year    = {},
  month   = {},
  url     = {https://www.historyofsocialsecurity.ch/zeitstrahl/cww-expansion-and-consolidation-of-the-welfare-state/ysn-ahv-the-cornerstone-of-social-security}
}