@book { VerkehrswertermittlungvonShoppingCentern,
    title = "Verkehrswertermittlung von Shopping-Centern",
    author = "Christian {Aumiller}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640250820",
    url = "https://www.hausarbeiten.de/document/121419"
}