@book { RentenportfoliomanagementaufderBasisvonMehrfaktorenmodellen,
    title = "Rentenportfoliomanagement auf der Basis von Mehrfaktorenmodellen",
    author = "Sandra {Kehrmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091461"
}