@book { VernderbarkeitbetrieblichenHandelns,
    title = "Veränderbarkeit betrieblichen Handelns",
    author = "Dagmar {Festner}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01488-4",
    url = "https://www.peterlang.com/document/1046884"
}