@book { CreditRiskRecentAdvances,
    title = "Credit Risk: Recent Advances",
    author = "Martin {Knoch}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832418823",
    url = "https://m.diplom.de/document/217732"
}