@presentation{boettger2014puma,
  abstract = {bla},
  address = {Reutlingen},
  author = {Böttger, Sebastian},
  month = {07},
  publisher = {Berufsverband Information Bibliothek},
  title = {PUMA als Schnittstelle zwischen Discovery Service, Institutional Repository und eLearning},
  year = 2014
}