@misc{ernst-kaiser,
  title   = {Ernst Kaiser},
  author  = {Lengwiler, Martin and Leimgruber, Matthieu},
  year    = {2014},
  month   = {jun},
  url     = {https://www.historyofsocialsecurity.ch/articles/stakeholders/history-of-social-security-civil-servants-and-specialists/ernst-kaiser}
}