@article{Oppermann2009,
  author    = {Thomas Oppermann},
  title     = {Die Europ{\"a}ische Verfassung},
  journal   = {WeltTrends-Papiere},
  series    = {auf dem Weg zu einer immer engeren Union?},
  number    = {2},
  pages     = {6 -- 16},
  year      = {2009},
}