@book { Beweislastumkehr476BGB,
    title = "Beweislastumkehr § 476 BGB",
    author = "Cindy {Gerlach}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640773466",
    url = "https://www.hausarbeiten.de/document/163092"
}