@misc{Issing2013,
  author    = {Otmar Issing},
  title     = {Challenges for monetary policy},
  booktitle = {SAFE white paper series ; 7},
  url       = {http://safe-frankfurt.de/policy-center/policy-publications/details/article/challenges-for-monetary-policy.html},
  institution = {Wirtschaftswissenschaften},
  series    = {SAFE white paper series},
  number    = {7},
  type      = {workingpaper},
  pages     = {1 -- 10},
  year        = {2013},
}