@book { BewertungohneKapitalkosten,
    title = "Bewertung ohne «Kapitalkosten»",
    author = "Josef {Schosser}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00278-2",
    url = "https://www.peterlang.com/document/1054271"
}