@misc{mqo-private-insurances-and-welfare-associations,
  title   = {{Private Insurances and Welfare Associations}},
  author  = {},
  year    = {},
  month   = {},
  url     = {https://www.historyofsocialsecurity.ch/articles/bja-institutions/gts-history-of-social-security-insurance-funds/mqo-private-insurances-and-welfare-associations}
}