@book { RaumwirtschaftlichesModellderStadtentwicklung,
    title = "Raumwirtschaftliches Modell der Stadtentwicklung",
    author = "Franz Peter {Lang}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1072427"
}