@book { KommunikationalssubjektiverErfolgsfaktor,
    title = "Kommunikation als subjektiver Erfolgsfaktor",
    author = "Klaus {Lassert}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100940"
}