@misc{social-security-as-seen-from-an-international-perspective,
  title   = {International social security organisations},
  author  = {Leimgruber, Matthieu},
  year    = {2014},
  month   = {jun},
  url     = {https://www.historyofsocialsecurity.ch/articles/topics/swiss-specificities-and-international-comparison/social-security-as-seen-from-an-international-perspective}
}