@misc{Kaas2020,
  author    = {Leo Kaas},
  title     = {A plea against "black zero"},
  booktitle = {SAFE Finance Blog 09.08.2019},
  url       = {https://safe-frankfurt.de/news-latest/safe-finance-blog/details/a-plea-against-black-zero.html},
  institution = {Wirtschaftswissenschaften},
  series    = {SAFE Finance Blog},
  number    = {09.08.2019 e},
  type      = {periodicalpart},
  year        = {2020},
}