@misc{SiekmannWieland2020,
  author    = {Helmut Siekmann and Volker Wieland},
  title     = {The ruling of the Federal Constitutional Court concerning the public sector purchase program: a practical way forward},
  booktitle = {Working paper series / Institute for Monetary and Financial Stability ; 140},
  number    = {8 May 2020},
  url       = {https://www.imfs-frankfurt.de/fileadmin/user_upload/IMFS_WP/IMFS_WP_140.pdf},
  institution = {Wirtschaftswissenschaften},
  series    = {Working paper series / Institute for Monetary and Financial Stability},
  number    = {140},
  type      = {workingpaper},
  pages     = {18},
  year        = {2020},
}