@book { EuropischeRaumentwicklung,
    title = "Europäische Raumentwicklung",
    subtitle = "Metropolen und periphere Regionen",
    author = "Eckart {Güldenberg} and Tobias {Preising} and Frank {Scholles}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106933"
}