@misc{Ludwig2020,
  author    = {Alexander Ludwig},
  title     = {Four measures for a sustainable pension system},
  booktitle = {SAFE Finance Blog 01.11.2017},
  url       = {https://safe-frankfurt.de/news-latest/safe-finance-blog/details/four-measures-for-a-sustainable-pension-system.html},
  institution = {Wirtschaftswissenschaften},
  series    = {SAFE Finance Blog},
  number    = {01.11.2017 e},
  type      = {periodicalpart},
  year        = {2020},
}