@book{BotheDolzerHailbronneretal.2007,
  author    = {Bothe, Michael and Dolzer, Rudolf and Hailbronner, Kay and Klein, Eckart and Kunig, Philip and Schr{\"o}der, Meinhard and Graf Vitzthum, Wolfgang},
  title     = {V{\"o}lkerrecht},
  editor    = {Graf Vitzthum, Wolfgang},
  publisher = {de Gruyter},
  address   = {Munchen},
  isbn      = {978-3-89949-426-6},
  pages     = {757 S.},
  year      = {2007},
  language  = {de}
}
@article{KleinHailbronner2002,
  author    = {Klein, Eckart and Hailbronner, Kay},
  title     = {Kommentierung von Art. 10 - 12},
  year      = {2002},
  language  = {de}
}
@book{HailbronnerMagieraKleinetal.1996,
  author    = {Hailbronner, Kay and Magiera, S. and Klein, Eckart and M{\"u}ller-Graf, C.},
  title     = {Handkommentar zum Vertrag {\"u}ber die Europ{\"a}ische Union : EUV, EGV},
  publisher = {Heymanns},
  address   = {K{\"o}ln},
  isbn      = {3-452-22171-7},
  pages     = {Losebl.-Ausg. in 2 Ordnern},
  year      = {1996},
  language  = {de}
}
@article{HailbronnerKlein1995,
  author    = {Hailbronner, Kay and Klein, Eckart},
  title     = {Artikel 10 - 12},
  year      = {1995},
  language  = {de}
}