@misc{WolferKoplenigMichaelisetal.2020,
  author    = {Wolfer, Sascha and Koplenig, Alexander and Michaelis, Frank and M{\"u}ller-Spitzer, Carolin},
  title     = {cOWIDplus Viewer},
  series    = {OWIDplus},
  url       = {https://www.owid.de/plus/cowidplusviewer2020/},
  year      = {2020},
  subject      = {COVID-19},
  language  = {de}
}