@misc{ahp-the-three-pillar-principle-becomes-enshrined-in-the-federal-constitution,
  title   = {{The Three-Pillar Principle Becomes Enshrined in the Federal Constitution}},
  author  = {},
  year    = {},
  month   = {},
  url     = {https://www.historyofsocialsecurity.ch/zeitstrahl/cww-expansion-and-consolidation-of-the-welfare-state/ahp-the-three-pillar-principle-becomes-enshrined-in-the-federal-constitution}
}