@book { GestaltungsraumEuropischeStadtRegion,
    title = "Gestaltungsraum Europäische StadtRegion",
    author = "Renate {Bornberg} and Klaus {Habermann-Nieße} and Barbara {Zibell}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106492"
}