@article{itb2454,
  author = {Oesterreich, Bernd and Gessler, Michael and Lehmann, Oliver F.},
  title = {Mein Haus, mein Auto,  meine Projektmanagement-Zertifikate},
  year = {2009},
  journal = {OBJEKTspektrum Fachzeitschrift für Software-Engineering und -Mana­­ge­ment},
  volume = {2},
  number = {3},
  pages = {46–53},
}