@book { DieVlkerrechtspersnlichkeitderEuropischenUnion,
    title = "Die Völkerrechtspersönlichkeit der Europäischen Union",
    subtitle = "L’Union Européenne comme sujet du droit international",
    author = "Michael M. {Pachinger}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096144"
}