@book { MortgageBackedSecuritisation,
    title = "Mortgage-Backed Securitisation",
    author = "Alexander {Loimayr}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832457587",
    url = "https://m.diplom.de/document/221220"
}