@book { UmlagenimKonzern,
    title = "Umlagen im Konzern",
    author = "Alexander {Shchavelev}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02125-7",
    url = "https://www.peterlang.com/document/1047359"
}