@article{BletzingerWieland2017,
  author    = {Tilman Bletzinger and Volker Wieland},
  title     = {Lower for longer: the case of the ECB},
  journal   = {Economics letters},
  volume    = {159},
  pages     = {123 -- 127},
  doi       = {10.1016/j.econlet.2017.06.030},
  year      = {2017},
}