@book { HistorischeLeitbilderderStadtentwicklung,
    title = "Historische Leitbilder der Stadtentwicklung",
    author = "Sylvia {Lorenz} and Nora {Durstewitz}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640920914",
    url = "https://www.hausarbeiten.de/document/172249"
}